{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/2.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p n\u00e0o g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean n sao cho n + 1 l\u00e0 \u01b0\u1edbc c\u1ee7a 15?","select":["A. {1; 3; 5; 15} ","B. {3; 5; 15} ","C. {0; 2; 5} ","D. {0; 2; 4; 14} "],"hint":"Ta \u0111i t\u00ecm c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a n \u0111\u1ec3 15 chia h\u1ebft cho n + 1","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> T\u00ecm c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a n + 1 \u0111\u1ec3 15 $\\vdots$ (n + 1) <br\/> <b> B\u01b0\u1edbc 2: <\/b> T\u00ecm n d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 b\u01b0\u1edbc 1 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> \u0110\u1ec3 n + 1 l\u00e0 \u01b0\u1edbc c\u1ee7a 15 th\u00ec 15 $\\vdots$ (n + 1) <br\/> \u0110\u1ec3 15 $\\vdots$ (n + 1) $\\Rightarrow$ (n + 1) $\\in$ {1; 3; 5; 15} <br\/> V\u1edbi n + 1 = 1 $\\Rightarrow$ n = 0 <br\/> n + 1 = 3 $\\Rightarrow$ n = 2 <br\/> n + 1 = 5 $\\Rightarrow$ n = 4 <br\/> n + 1 = 15 $\\Rightarrow$ n = 14 <br\/> V\u1eady t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean n \u0111\u1ec3 n + 1 l\u00e0 \u01b0\u1edbc c\u1ee7a 15 l\u00e0: {0; 2; 4; 14} <br\/> <span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: D <\/span> ","column":2}]}],"id_ques":581},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/2.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p n\u00e0o g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean n sao cho n - 3 l\u00e0 \u01b0\u1edbc c\u1ee7a 12?","select":["A. {1; 3; 6; 4; 12} ","B. {8; 6; 9; 15} ","C. {1; 2; 3; 4; 6; 12} ","D. {4; 5; 6; 7; 9; 15} "],"hint":"Ta \u0111i t\u00ecm c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a n \u0111\u1ec3 12 chia h\u1ebft cho n - 3","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> T\u00ecm c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a n - 3 \u0111\u1ec3 12 $\\vdots$ (n - 3) <br\/> <b> B\u01b0\u1edbc 2: <\/b> T\u00ecm n d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 b\u01b0\u1edbc 1 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> \u0110\u1ec3 n - 3 l\u00e0 \u01b0\u1edbc c\u1ee7a 12 th\u00ec 12 $\\vdots$ (n - 3) <br\/> \u0110\u1ec3 12 $\\vdots$ (n - 3) $\\Rightarrow$ (n - 3) $\\in$ {1; 2; 3; 4; 6; 12} <br\/> V\u1edbi n - 3 = 1 $\\Rightarrow$ n = 1 + 3 = 4 <br\/> n - 3 = 2 $\\Rightarrow$ n = 2 + 3 = 5 <br\/> n - 3 = 3 $\\Rightarrow$ n = 3 + 3 = 6 <br\/> n - 3 = 4 $\\Rightarrow$ n = 4 + 3 = 7 <br\/> n - 3 = 6 $\\Rightarrow$ n = 6 + 3 = 9 <br\/> n - 3 = 12 $\\Rightarrow$ n = 12 + 3 = 15 <br\/> V\u1eady t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean n \u0111\u1ec3 n - 3 l\u00e0 \u01b0\u1edbc c\u1ee7a 12 l\u00e0: {4; 5; 6; 7; 9; 15} <br\/> <span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: D <\/span> ","column":2}]}],"id_ques":582},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/4.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u00f3 hai ch\u1eef s\u1ed1 c\u1ee7a 64. ","select":["A. {64; 32} ","B. {16; 32} ","C. {16; 32; 64} ","D. {16; 30; 64} "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a 64 <br\/> <b> B\u01b0\u1edbc 2: <\/b> T\u00ecm ra c\u00e1c \u01b0\u1edbc c\u00f3 hai ch\u1eef s\u1ed1 t\u1eeb c\u00e1c \u01b0\u1edbc v\u1eeba t\u00ecm \u1edf b\u01b0\u1edbc 1 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: \u01af(64) = {1; 2; 4; 8; 16; 32; 64} <br\/> Trong c\u00e1c \u01b0\u1edbc tr\u00ean c\u00f3 c\u00e1c \u01b0\u1edbc c\u00f3 hai ch\u1eef s\u1ed1 l\u00e0: 16; 32; 64 <br\/> <span class='basic_pink'>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: C <\/span> ","column":2}]}],"id_ques":583},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/4.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u00f3 hai ch\u1eef s\u1ed1 c\u1ee7a 96. ","select":["A. {12; 16; 32; 24; 48; 96} ","B. {12; 15; 24; 32; 96} ","C. {12; 16; 23; 48; 96} ","D. {12; 48; 95; 24} "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a 96 <br\/> <b> B\u01b0\u1edbc 2: <\/b> T\u00ecm ra c\u00e1c \u01b0\u1edbc c\u00f3 hai ch\u1eef s\u1ed1 t\u1eeb c\u00e1c \u01b0\u1edbc v\u1eeba t\u00ecm \u1edf b\u01b0\u1edbc 1 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: \u01af(96) = {1; 2; 3; 4; 6; 8; 12; 16; 24; 32; 48; 96 } <br\/> Trong c\u00e1c \u01b0\u1edbc tr\u00ean c\u00f3 c\u00e1c \u01b0\u1edbc c\u00f3 hai ch\u1eef s\u1ed1 l\u00e0: 12; 16; 24; 32; 48; 96 <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":2}]}],"id_ques":584},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/10.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i c\u00f3 m\u1ed9t ch\u1eef s\u1ed1 c\u1ee7a 3. ","select":["A. {1; 3; 6; 9} ","B. {0; 3; 6; 9} ","C. {1; 3; 6; 8} ","D. {0; 3; 5; 9} "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Nh\u00e2n 3 l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0, 1, 2,... \u0111\u1ec3 t\u00ecm b\u1ed9i c\u1ee7a 3 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 3 . 0 = 0; 3 . 1 = 3; 3 . 2 = 6; 3 . 3 = 9; ... <br\/> N\u00ean t\u1eadp h\u1ee3p c\u00e1c b\u1ed9i c\u00f3 m\u1ed9t ch\u1eef s\u1ed1 c\u1ee7a 3 l\u00e0: {0; 3; 6; 9} <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":2}]}],"id_ques":585},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/10.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i c\u00f3 hai ch\u1eef s\u1ed1 c\u1ee7a 25. ","select":["A. {25; 50; 65; 85} ","B. {50; 75; 90; 25} ","C. {25; 75; 50; 95} ","D. {25; 50; 75} "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Nh\u00e2n 25 l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0, 1, 2,... \u0111\u1ec3 t\u00ecm b\u1ed9i c\u1ee7a 25 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 25 . 0 = 0; 25 . 1 = 25; 25 . 2 = 50; 25 . 3 = 75; 25 . 4 = 100; ... <br\/> N\u00ean t\u1eadp h\u1ee3p c\u00e1c b\u1ed9i c\u00f3 hai ch\u1eef s\u1ed1 c\u1ee7a 25 l\u00e0: {25; 50; 75} <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: D <\/span> ","column":2}]}],"id_ques":586},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/13.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn s\u1ed1 l\u00e0 b\u1ed9i c\u1ee7a 631","select":["A. 4417 ","B. 3154 ","C. 9217 ","D. 8346 "],"hint":"T\u00ecm s\u1ed1 chia h\u1ebft cho 631","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 4417 $\\vdots$ 631 $\\Rightarrow$ 4417 l\u00e0 b\u1ed9i c\u1ee7a 631 <br\/> 3154 $\\not \\vdots$ 631 $\\Rightarrow$ 3154 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 631 <br\/> 9217 $\\not \\vdots$ 631 $\\Rightarrow$ 9217 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 631 <br\/> 8346 $\\not \\vdots$ 631 $\\Rightarrow$ 8346 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 631 <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":2}]}],"id_ques":587},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/13.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn s\u1ed1 l\u00e0 b\u1ed9i c\u1ee7a 921","select":["A. 3585 ","B. 6447 ","C. 4216 ","D. 829 "],"hint":"T\u00ecm s\u1ed1 chia h\u1ebft cho 921","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 3585 $\\not \\vdots$ 921 $\\Rightarrow$ 3585 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 921 <br\/> 6447 $ \\vdots$ 921 $\\Rightarrow$ 6447 l\u00e0 b\u1ed9i c\u1ee7a 921 <br\/> 4216 $\\not \\vdots$ 921 $\\Rightarrow$ 4216 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 921 <br\/> 829 $\\not \\vdots$ 921 $\\Rightarrow$ 829 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 921 <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":2}]}],"id_ques":588},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/2.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn s\u1ed1 l\u00e0 \u01b0\u1edbc c\u1ee7a 10349","select":["A. 131 ","B. 143 ","C. 187 ","D. 425 "],"hint":"10349 chia h\u1ebft cho s\u1ed1 n\u00e0o trong c\u00e1c s\u1ed1 tr\u00ean","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 10349 $ \\vdots$ 131 $\\Rightarrow$ 131 l\u00e0 \u01b0\u1edbc c\u1ee7a 10349 <br\/> 10349 $\\not \\vdots$ 143 $\\Rightarrow$ 143 kh\u00f4ng ph\u1ea3i l\u00e0 \u01b0\u1edbc c\u1ee7a 10349 <br\/> 10349 $\\not \\vdots$ 187 $\\Rightarrow$ 187 kh\u00f4ng ph\u1ea3i l\u00e0 \u01b0\u1edbc c\u1ee7a 10349 <br\/> 10349 $\\not \\vdots$ 425 $\\Rightarrow$ 425 kh\u00f4ng ph\u1ea3i l\u00e0 \u01b0\u1edbc c\u1ee7a 10349 <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":2}]}],"id_ques":589},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/2.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn s\u1ed1 l\u00e0 \u01b0\u1edbc c\u1ee7a 5587","select":["A. 17 ","B. 151 ","C. 147 ","D. 86 "],"hint":"5587 chia h\u1ebft cho s\u1ed1 n\u00e0o trong c\u00e1c s\u1ed1 tr\u00ean","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 5587 $\\not \\vdots$ 17 $\\Rightarrow$ 17 kh\u00f4ng l\u00e0 \u01b0\u1edbc c\u1ee7a 5587 <br\/> 5587 $ \\vdots$ 151 $\\Rightarrow$ 151 l\u00e0 \u01b0\u1edbc c\u1ee7a 5587 <br\/> 5587 $\\not \\vdots$ 147 $\\Rightarrow$ 147 kh\u00f4ng ph\u1ea3i l\u00e0 \u01b0\u1edbc c\u1ee7a 5587 <br\/> 5587 $\\not \\vdots$ 86 $\\Rightarrow$ 86 kh\u00f4ng ph\u1ea3i l\u00e0 \u01b0\u1edbc c\u1ee7a 5587 <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":2}]}],"id_ques":590},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/4.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","select":["A. $18 \\in \u01af(324)$ ","B. $131 \\in B(13)$ ","C. $79 \\in B(29)$ ","D. C\u1ea3 3 \u0111\u00e1p \u00e1n tr\u00ean "],"hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m \u01b0\u1edbc v\u00e0 b\u1ed9i","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Ki\u1ec3m tra t\u1eebng \u0111\u00e1p \u00e1n d\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m \u01b0\u1edbc v\u00e0 b\u1ed9i: N\u1ebfu a $\\vdots$ b th\u00ec b \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u01b0\u1edbc c\u1ee7a a, a l\u00e0 b\u1ed9i c\u1ee7a b <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> V\u00ec 324 $\\vdots$ 18 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$18 \\in \u01af(324)$'' l\u00e0 <b> \u0110\u00daNG <\/b> <br\/> 131 $\\not \\vdots$ 13 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$131 \\in B(13)$'' l\u00e0 <b> SAI <\/b> <br\/> 79 $\\not \\vdots$ 29 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$79 \\in B(29)$'' l\u00e0 <b> SAI <\/b> <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":2}]}],"id_ques":591},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/4.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","select":["A. $47 \\in B(17)$","B. $57 \\in \u01af(2679)$ ","C. $29 \\in \u01af(1311)$ ","D. $5 \\in \u01af(423)$ "],"hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m \u01b0\u1edbc v\u00e0 b\u1ed9i","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Ki\u1ec3m tra t\u1eebng \u0111\u00e1p \u00e1n d\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m \u01b0\u1edbc v\u00e0 b\u1ed9i: N\u1ebfu a $\\vdots$ b th\u00ec b \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u01b0\u1edbc c\u1ee7a a, a l\u00e0 b\u1ed9i c\u1ee7a b <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> V\u00ec 47 $\\not \\vdots$ 17 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$47 \\in B(17)$'' l\u00e0 <b> SAI <\/b> <br\/> 2679 $ \\vdots$ 57 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$57 \\in \u01af(2679)$'' l\u00e0 <b> \u0110\u00daNG <\/b> <br\/> 1311 $\\not \\vdots$ 29 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$29 \\in \u01af(1311)$'' l\u00e0 <b> SAI <\/b> <br\/> 423 $\\not \\vdots$ 5 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$5 \\in \u01af(423)$'' l\u00e0 <b> SAI <\/b> <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":2}]}],"id_ques":592},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/4.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","select":["A. $258 \\in B(13)$ ","B. $427 \\in B(37)$ ","C. $245 \\in \u01af(8575)$ ","D. $15 \\in \u01af(2946)$ "],"hint":"D\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m \u01b0\u1edbc v\u00e0 b\u1ed9i","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Ki\u1ec3m tra t\u1eebng \u0111\u00e1p \u00e1n d\u1ef1a v\u00e0o kh\u00e1i ni\u1ec7m \u01b0\u1edbc v\u00e0 b\u1ed9i: N\u1ebfu a $\\vdots$ b th\u00ec b \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u01b0\u1edbc c\u1ee7a a, a l\u00e0 b\u1ed9i c\u1ee7a b <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> V\u00ec 258 $\\not \\vdots$ 13 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$258 \\in B(13)$'' l\u00e0 <b> SAI <\/b> <br\/> 427 $\\not \\vdots$ 37 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$427 \\in B(37)$'' l\u00e0 <b> SAI <\/b> <br\/> 8575 $ \\vdots$ 245 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$245 \\in \u01af(8575)$'' l\u00e0 <b> \u0110\u00daNG <\/b> <br\/> 2946 $\\not \\vdots$ 15 $\\Rightarrow$ Kh\u1eb3ng \u0111\u1ecbnh ''$15 \\in \u01af(2946)$'' l\u00e0 <b> SAI <\/b> <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C <\/span> ","column":2}]}],"id_ques":593},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/3.jpg' \/><\/center> <br\/> 57 l\u00e0 \u01b0\u1edbc l\u1edbn nh\u1ea5t c\u1ee7a 741. <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 741 c\u00f3 c\u00e1c \u01b0\u1edbc l\u00e0: 1; 3; 13; 57; 247; 19; 39; 741 <br\/> Trong c\u00e1c \u01b0\u1edbc tr\u00ean th\u00ec \u01b0\u1edbc l\u1edbn nh\u1ea5t l\u00e0 741 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> <br\/> <span class='basic_green'> <i> Nh\u1eadn x\u00e9t: M\u1ed9t s\u1ed1 c\u00f3 \u01b0\u1edbc l\u1edbn nh\u1ea5t l\u00e0 ch\u00ednh n\u00f3 <\/b> <\/span>","column":2}]}],"id_ques":594},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/3.jpg' \/><\/center> <br\/> N\u1ebfu a l\u00e0 \u01b0\u1edbc c\u1ee7a b th\u00ec b : a c\u0169ng l\u00e0 \u01b0\u1edbc c\u1ee7a b. <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: a l\u00e0 \u01b0\u1edbc c\u1ee7a b n\u00ean b $\\vdots$ a vi\u1ebft b : a = c ($c \\in \\mathbb{N}$) <br\/> V\u00ec b : a = c $\\Rightarrow$ b $\\vdots$ c hay c l\u00e0 \u01b0\u1edbc c\u1ee7a b <br\/> V\u1eady b : a c\u0169ng l\u00e0 \u01b0\u1edbc c\u1ee7a b <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":2}]}],"id_ques":595},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/11.jpg' \/><\/center> <br\/> 4 v\u00e0 8 c\u00f3 nh\u1eefng \u01b0\u1edbc gi\u1ed1ng nhau l\u00e0:","select":["A. 1; 3 v\u00e0 4","B. 2; 4 v\u00e0 8 ","C. 3; 4 v\u00e0 8","D. 1; 2 v\u00e0 4 "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> T\u00ecm c\u00e1c \u01b0\u1edbc c\u1ee7a 4; t\u00ecm c\u00e1c \u01b0\u1edbc c\u1ee7a 8<br\/> <b> B\u01b0\u1edbc 2: <\/b> T\u00ecm \u01b0\u1edbc chung c\u1ee7a 4 v\u00e0 8 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 4 c\u00f3 c\u00e1c \u01b0\u1edbc l\u00e0: 1; 2; 4 <br\/> 8 c\u00f3 c\u00e1c \u01b0\u1edbc l\u00e0: 1; 2; 4; 8 <br\/> $\\Rightarrow$ 4 v\u00e0 8 c\u00f3 c\u00e1c \u01b0\u1edbc chung l\u00e0: 1; 2 v\u00e0 4 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n l\u00e0: D. 1; 2 v\u00e0 4 <\/span> ","column":2}]}],"id_ques":596},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/11.jpg' \/><\/center> <br\/> 35 l\u00e0 b\u1ed9i c\u1ee7a 5 v\u00e0 l\u00e0 b\u1ed9i c\u1ee7a 7. <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 35 $\\vdots$ 5 $\\Rightarrow$ 35 l\u00e0 b\u1ed9i c\u1ee7a 5 <br\/> 35 $\\vdots$ 7 $\\Rightarrow$ 35 l\u00e0 b\u1ed9i c\u1ee7a 7 <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh '' 35 l\u00e0 b\u1ed9i c\u1ee7a 5 v\u00e0 l\u00e0 b\u1ed9i c\u1ee7a 7'' l\u00e0 <b> \u0110\u00daNG <\/b> ","column":2}]}],"id_ques":597},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["17"]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/7.jpg' \/><\/center> <br\/> H\u00e3y t\u00ecm x $\\neq$ 1 bi\u1ebft x l\u00e0 \u01b0\u1edbc c\u1ee7a 629 v\u00e0 x c\u0169ng l\u00e0 \u01b0\u1edbc c\u1ee7a 187? <br\/> \u0110\u00e1p \u00e1n l\u00e0: x = _input_ ","hint":"Ta \u0111i t\u00ecm x bi\u1ebft 629 $\\vdots$ x v\u00e0 187 $\\vdots$ x","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> Ph\u00e2n t\u00edch 629 th\u00e0nh t\u00edch c\u1ee7a 2 s\u1ed1 <br\/> Ph\u00e2n t\u00edch 187 th\u00e0nh t\u00edch c\u1ee7a 2 s\u1ed1 <br\/> <b> B\u01b0\u1edbc 2: <\/b> S\u1ed1 c\u1ea7n t\u00ecm ch\u00ednh l\u00e0 th\u1eeba s\u1ed1 chung <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: V\u00ec x l\u00e0 \u01b0\u1edbc c\u1ee7a 629 $\\Rightarrow$ 629 $\\vdots$ x <br\/> x l\u00e0 \u01b0\u1edbc c\u1ee7a 187 $\\Rightarrow$ 187 $\\vdots$ x <br\/> L\u1ea1i c\u00f3: 629 = 17 . 37 = 1 . 629; 187 = 17 . 11 = 1 . 187 <br\/> K\u1ebft h\u1ee3p \u0111i\u1ec1u ki\u1ec7n x $\\neq$ 1 $\\Rightarrow$ x = 17 <br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 17 <\/span>"}]}],"id_ques":598},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["11"]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/7.jpg' \/><\/center> <br\/> H\u00e3y t\u00ecm x $\\neq$ 1 bi\u1ebft x l\u00e0 \u01b0\u1edbc c\u1ee7a 121 v\u00e0 x c\u0169ng l\u00e0 \u01b0\u1edbc c\u1ee7a 209? <br\/> \u0110\u00e1p \u00e1n l\u00e0: x = _input_ ","hint":"Ta \u0111i t\u00ecm x bi\u1ebft 121 $\\vdots$ x v\u00e0 209 $\\vdots$ x","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> Ph\u00e2n t\u00edch 121 th\u00e0nh t\u00edch c\u1ee7a 2 s\u1ed1 <br\/> Ph\u00e2n t\u00edch 209 th\u00e0nh t\u00edch c\u1ee7a 2 s\u1ed1 <br\/> <b> B\u01b0\u1edbc 2: <\/b> S\u1ed1 c\u1ea7n t\u00ecm ch\u00ednh l\u00e0 th\u1eeba s\u1ed1 chung <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: V\u00ec x l\u00e0 \u01b0\u1edbc c\u1ee7a 121 $\\Rightarrow$ 121 $\\vdots$ x <br\/> x l\u00e0 \u01b0\u1edbc c\u1ee7a 209 $\\Rightarrow$ 209 $\\vdots$ x <br\/> L\u1ea1i c\u00f3: 121 = 11 . 11 = 1 . 121; 209 = 11 . 19 = 1 . 209 <br\/> K\u1ebft h\u1ee3p \u0111i\u1ec1u ki\u1ec7n x $\\neq$ 1 $\\Rightarrow$ x = 11 <br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 11 <\/span>"}]}],"id_ques":599},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["3"]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv2/img\/7.jpg' \/><\/center> <br\/> H\u00e3y t\u00ecm x $\\neq$ 1 bi\u1ebft x l\u00e0 \u01b0\u1edbc c\u1ee7a 18 v\u00e0 x c\u0169ng l\u00e0 \u01b0\u1edbc c\u1ee7a 21? <br\/> \u0110\u00e1p \u00e1n l\u00e0: x = _input_ ","hint":"Ta \u0111i t\u00ecm x bi\u1ebft 18 $\\vdots$ x v\u00e0 21 $\\vdots$ x","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> Ph\u00e2n t\u00edch 18 th\u00e0nh t\u00edch c\u1ee7a 2 s\u1ed1 <br\/> Ph\u00e2n t\u00edch 21 th\u00e0nh t\u00edch c\u1ee7a 2 s\u1ed1<br\/> <b> B\u01b0\u1edbc 2: <\/b> S\u1ed1 c\u1ea7n t\u00ecm ch\u00ednh l\u00e0 th\u1eeba s\u1ed1 chung <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: V\u00ec x l\u00e0 \u01b0\u1edbc c\u1ee7a 18 $\\Rightarrow$ 18 $\\vdots$ x <br\/> x l\u00e0 \u01b0\u1edbc c\u1ee7a 21 $\\Rightarrow$ 21 $\\vdots$ x <br\/> L\u1ea1i c\u00f3: 21 = 3 . 7 = 1 . 21; 18 = 2 . 9 = 3 . 6 = 1 . 18 <br\/> K\u1ebft h\u1ee3p \u0111i\u1ec1u ki\u1ec7n x $\\neq$ 1 $\\Rightarrow$ x = 3 <br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 3 <\/span>"}]}],"id_ques":600}],"lesson":{"save":0,"level":2}}