{"segment":[{"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/lv1/img\/6.jpg' \/><\/center> <br\/> N\u1ebfu a $\\vdots$ b th\u00ec b l\u00e0 \u01b0\u1edbc c\u1ee7a a <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\/> N\u1ebfu c\u00f3 m\u1ed9t s\u1ed1 t\u1ef1 nhi\u00ean a chia h\u1ebft cho s\u1ed1 t\u1ef1 nhi\u00ean b th\u00ec ta n\u00f3i a l\u00e0 b\u1ed9i c\u1ee7a b, b l\u00e0 \u01b0\u1edbc c\u1ee7a a <br\/> N\u00ean kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> \u0110\u00daNG <\/b> ","column":2}]}],"id_ques":561},{"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/lv1/img\/6.jpg' \/><\/center> <br\/> Trong m\u1ed9t ph\u00e9p chia h\u1ebft th\u00ec s\u1ed1 b\u1ecb chia \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9i <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\/> V\u00ec S\u1ed1 b\u1ecb chia : s\u1ed1 chia = th\u01b0\u01a1ng <br\/> N\u00ean trong ph\u00e9p chia h\u1ebft th\u00ec s\u1ed1 b\u1ecb chia l\u00e0 b\u1ed9i <br\/> N\u00ean kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> \u0110\u00daNG <\/b> ","column":2}]}],"id_ques":562},{"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/lv1/img\/10.jpg' \/><\/center> <br\/> T\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a a \u0111\u01b0\u1ee3c vi\u1ebft l\u00e0:","select":["A. \u01af(a) ","B. B(a) "],"hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> T\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a a \u0111\u01b0\u1ee3c vi\u1ebft l\u00e0 \u01af(a) <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span>","column":2}]}],"id_ques":563},{"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/lv1/img\/10.jpg' \/><\/center> <br\/> T\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a 8 \u0111\u01b0\u1ee3c vi\u1ebft l\u00e0 B(8) <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\/> T\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a 8 \u0111\u01b0\u1ee3c vi\u1ebft l\u00e0 \u01af(8) <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> SAI <\/b>","column":2}]}],"id_ques":564},{"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/lv1/img\/6.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a 4.","select":["A. \u01af(4) = {1; 2; 4} ","B. \u01af(4) = {1; 2; 3; 4} "],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n t\u00ecm \u01b0\u1edbc c\u1ee7a 4 ta l\u1ea5y 4 chia l\u1ea7n l\u01b0\u1ee3t cho c\u00e1c s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 4 xem 4 chia h\u1ebft cho nh\u1eefng s\u1ed1 n\u00e0o, khi \u0111\u00f3 c\u00e1c s\u1ed1 \u1ea5y l\u00e0 \u01b0\u1edbc c\u1ee7a 4 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3 v\u00ec 4 $\\vdots$ 1; 4 $\\vdots$ 2; 4 $\\vdots$ 4 <br\/> N\u00ean t\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a 4 l\u00e0: \u01af(4) = {1; 2; 4} <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":2}]}],"id_ques":565},{"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/lv1/img\/6.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a 6.","select":["A. \u01af(6) = {1; 2; 5} ","B. \u01af(6) = {1; 3; 4} ","C. \u01af(6) = {1; 2; 3; 6} "],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n t\u00ecm \u01b0\u1edbc c\u1ee7a 6 ta l\u1ea5y 6 chia l\u1ea7n l\u01b0\u1ee3t cho c\u00e1c s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 6 xem 6 chia h\u1ebft cho nh\u1eefng s\u1ed1 n\u00e0o, khi \u0111\u00f3 c\u00e1c s\u1ed1 \u1ea5y l\u00e0 \u01b0\u1edbc c\u1ee7a 6 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3 v\u00ec 6 $\\vdots$ 1; 6 $\\vdots$ 2; 6 $\\vdots$ 3 v\u00e0 6 $\\vdots$ 6 <br\/> N\u00ean t\u1eadp h\u1ee3p c\u00e1c \u01b0\u1edbc c\u1ee7a 6 l\u00e0: \u01af(6) = {1; 2; 3; 6} <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C <\/span> ","column":3}]}],"id_ques":566},{"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/lv1/img\/4.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn s\u1ed1 n\u00e0o l\u00e0 b\u1ed9i c\u1ee7a 125","select":["A. 375 ","B. 421 ","C. 320 ","D. 736 "],"hint":"T\u00ecm s\u1ed1 chia h\u1ebft cho 125","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> X\u00e9t t\u1eebng \u0111\u00e1p \u00e1n xem s\u1ed1 n\u00e0o chia h\u1ebft cho 125 th\u00ec s\u1ed1 \u0111\u00f3 ch\u00ednh l\u00e0 b\u1ed9i c\u1ee7a 125 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 375 $\\vdots$ 125 $\\Rightarrow$ 375 l\u00e0 b\u1ed9i c\u1ee7a 125 <br\/> 421 $\\not \\vdots$ 125 $\\Rightarrow$ 421 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 125 <br\/> 320 $\\not \\vdots$ 125 $\\Rightarrow$ 320 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 125 <br\/> 736 $\\not \\vdots$ 125 $\\Rightarrow$ 736 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 125 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":4}]}],"id_ques":567},{"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/lv1/img\/4.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn s\u1ed1 n\u00e0o l\u00e0 b\u1ed9i c\u1ee7a 38","select":["A. 192 ","B. 114","C. 250 ","D. 143 "],"hint":"T\u00ecm s\u1ed1 chia h\u1ebft cho 38","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> X\u00e9t t\u1eebng \u0111\u00e1p \u00e1n xem s\u1ed1 n\u00e0o chia h\u1ebft cho 38 th\u00ec s\u1ed1 \u0111\u00f3 ch\u00ednh l\u00e0 b\u1ed9i c\u1ee7a 38 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 192 $\\not \\vdots$ 38 $\\Rightarrow$ 192 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 38 <br\/> 114 $ \\vdots$ 38 $\\Rightarrow$ 114 l\u00e0 b\u1ed9i c\u1ee7a 38 <br\/> 250 $\\not \\vdots$ 38 $\\Rightarrow$ 250 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 38 <br\/> 143 $\\not \\vdots$ 38 $\\Rightarrow$ 143 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 38 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":4}]}],"id_ques":568},{"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/lv1/img\/3.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i nh\u1ecf h\u01a1n 28 c\u1ee7a 4","select":["A. {0; 4; 8; 12; 14; 24; 28}","B. {0; 4; 8; 12; 16; 20; 24}"],"hint":"Mu\u1ed1n t\u00ecm b\u1ed9i c\u1ee7a 4 ta l\u1ea5y 4 nh\u00e2n l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0; 1; 2;....","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> L\u1ea5y 4 nh\u00e2n l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0, 1, 2,... <br\/> <b> B\u01b0\u1edbc 2: <\/b> Ch\u1ec9 l\u1ea5y nh\u1eefng s\u1ed1 nh\u1ecf h\u01a1n 28 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 4 . 0 = 0; 4 . 1 = 4; 4 . 2 = 8; 4 . 3 = 12 <br\/> 4 . 4 = 16; 4 . 5 = 20; 4 . 6 = 24 <br\/> N\u00ean t\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i nh\u1ecf h\u01a1n 28 c\u1ee7a 4 l\u00e0: {0; 4; 8; 12; 16; 20; 24} <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":2}]}],"id_ques":569},{"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/lv1/img\/3.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn t\u1eadp h\u1ee3p g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i nh\u1ecf h\u01a1n 15 c\u1ee7a 3","select":["A. {3; 6; 9; 11; 14}","B. {0; 6; 9; 3; 12}"],"hint":"Mu\u1ed1n t\u00ecm b\u1ed9i c\u1ee7a 3 ta l\u1ea5y 3 nh\u00e2n l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0; 1; 2;....","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> B\u01b0\u1edbc 1: <\/b> L\u1ea5y 3 nh\u00e2n l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0, 1, 2,... <br\/> <b> B\u01b0\u1edbc 2: <\/b> Ch\u1ec9 l\u1ea5y nh\u1eefng s\u1ed1 nh\u1ecf h\u01a1n 15 <\/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\/> 3 . 4 = 12 <br\/> N\u00ean t\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i nh\u1ecf h\u01a1n 15 c\u1ee7a 3 l\u00e0: {0; 3; 6; 9; 12} <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":2}]}],"id_ques":570},{"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/lv1/img\/1.png' \/><\/center> <br\/> 91425 l\u00e0 b\u1ed9i c\u1ee7a 25.<br\/> <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"X\u00e9t xem 91425 c\u00f3 chia h\u1ebft cho 25 kh\u00f4ng","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> V\u00ec nh\u1eefng s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 t\u1eadn c\u00f9ng t\u1ea1o th\u00e0nh s\u1ed1 chia h\u1ebft cho 25 th\u00ec chia h\u1ebft cho 25 <br\/> N\u00ean 91425 $\\vdots$ 25 (v\u00ec 25 $\\vdots$ 25) hay 91425 l\u00e0 b\u1ed9i c\u1ee7a 25 <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> \u0110\u00daNG <\/b>","column":2}]}],"id_ques":571},{"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/lv1/img\/1.png' \/><\/center> <br\/> 719414 l\u00e0 b\u1ed9i c\u1ee7a 4 <b> \u0110\u00daNG <\/b> hay <b> SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"X\u00e9t xem 719414 c\u00f3 chia h\u1ebft cho 4 kh\u00f4ng","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> V\u00ec nh\u1eefng s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 t\u1eadn c\u00f9ng t\u1ea1o th\u00e0nh s\u1ed1 chia h\u1ebft cho 4 th\u00ec chia h\u1ebft cho 4 <br\/> N\u00ean 719414 $\\not \\vdots$ 4 (vi 14 $\\not \\vdots$ 4) hay 719414 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ed9i c\u1ee7a 4 <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> SAI <\/b>","column":2}]}],"id_ques":572},{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["39"],["65"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv1/img\/11.jpg' \/><\/center> <br\/> T\u00ecm x bi\u1ebft x $\\in$ \u01af(195); 15 < x < 139 <br\/> V\u1eady x = _input_; _input_","hint":"T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a 195 sau \u0111\u00f3 t\u00ecm x d\u1ef1a theo \u0111i\u1ec1u ki\u1ec7n 5 < x < 139","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\u1eadp \u01af(195) b\u1eb1ng c\u00e1ch lo\u1ea1i ra b\u1ed9i c\u1ee7a c\u00e1c s\u1ed1 m\u00e0 195 kh\u00f4ng chia h\u1ebft (v\u00ed d\u1ee5 b\u1ed9i c\u1ee7a 2...) <br\/> <b> B\u01b0\u1edbc 2: <\/b> D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 b\u01b0\u1edbc 1 k\u1ebft h\u1ee3p \u0111i\u1ec1u ki\u1ec7n 5 < x < 139 \u0111\u1ec3 t\u00ecm x <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> V\u00ec 195 $\\not \\vdots$ 2; 195 $\\not \\vdots$ 7 n\u00ean ta lo\u1ea1i ra c\u00e1c s\u1ed1 nh\u1ecf h\u01a1n 195 l\u00e0 b\u1ed9i c\u1ee7a 2, 7 <br\/> Ta c\u00f3: 195 : 5 = 39; 195 : 1 = 195; 195 : 3 = 65; 195 : 13 = 15 <br\/> $\\Rightarrow$ T\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a 195 l\u00e0: \u01af(195) = {1; 3; 5 ; 13; 15; 39; 65; 195} <br\/> V\u00ec x $\\in$ \u01af(195) v\u00e0 15 < x < 139 $\\Rightarrow$ x = 39 ho\u1eb7c x = 65 <br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 39; 65 <\/span>"}]}],"id_ques":573},{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["37"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv1/img\/11.jpg' \/><\/center> <br\/> T\u00ecm x bi\u1ebft x $\\in$ \u01af(259); 8 < x < 259 <br\/> V\u1eady x = _input_ ","hint":"T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a 259 sau \u0111\u00f3 t\u00ecm x d\u1ef1a theo \u0111i\u1ec1u ki\u1ec7n 8 < x < 259","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\u1eadp \u01af(259) b\u1eb1ng c\u00e1ch lo\u1ea1i ra b\u1ed9i c\u1ee7a c\u00e1c s\u1ed1 m\u00e0 259 kh\u00f4ng chia h\u1ebft (v\u00ed d\u1ee5 b\u1ed9i c\u1ee7a 2...) <br\/> <b> B\u01b0\u1edbc 2: <\/b> D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 b\u01b0\u1edbc 1 k\u1ebft h\u1ee3p \u0111i\u1ec1u ki\u1ec7n 8 < x < 259 \u0111\u1ec3 t\u00ecm x <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> V\u00ec 259 $\\not \\vdots$ 2; 259 $\\not \\vdots$ 3; 259 $\\not \\vdots$ 5 n\u00ean ta lo\u1ea1i ra c\u00e1c s\u1ed1 nh\u1ecf h\u01a1n 259 l\u00e0 b\u1ed9i c\u1ee7a 2, 3, 5 <br\/> Ta c\u00f3: 259 : 7 = 37; 259 : 1 = 259 <br\/> $\\Rightarrow$ T\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a 259 l\u00e0: \u01af(259) = {1; 7; 37; 259} <br\/> V\u00ec x $\\in$ \u01af(259) v\u00e0 8 < x < 259 $\\Rightarrow$ x = 37 <br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 37 <\/span>"}]}],"id_ques":574},{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["0"],["6"],["12"],["18"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv1/img\/7.jpg' \/><\/center> <br\/> T\u00ecm x $\\in$ B(6) bi\u1ebft x < 20 <br\/> V\u1eady x $\\in$ {_input_; _input_; _input_; _input_} ","hint":"T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i c\u1ee7a 6 m\u00e0 nh\u1ecf h\u01a1n 20","explain":"<span class='basic_left'><span class='basic_green'> H\u01b0\u1edbng d\u1eabn: <\/span><br\/> T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i c\u1ee7a 6 m\u00e0 nh\u1ecf h\u01a1n 20 b\u1eb1ng c\u00e1ch l\u1ea5y 6 nh\u00e2n l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0, 1, 2,... <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: 6 . 0 = 0; 6 . 1 = 6; 6 . 2 = 12; 6 . 3 = 18,... <br\/> V\u00ec x $\\in$ B(6) v\u00e0 x < 20 $\\Rightarrow$ x $\\in$ {0; 6; 12; 18} <br\/> <span class='basic_pink'> V\u1eady c\u00e1c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 0; 6; 12; 18 <\/span>"}]}],"id_ques":575},{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["0"],["7"],["14"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai12/lv1/img\/7.jpg' \/><\/center> <br\/> T\u00ecm x $\\in$ B(7) bi\u1ebft x < 20 <br\/> V\u1eady x $\\in$ {_input_; _input_; _input_} ","hint":"T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i c\u1ee7a 7 m\u00e0 nh\u1ecf h\u01a1n 20","explain":"<span class='basic_left'><span class='basic_green'> H\u01b0\u1edbng d\u1eabn: <\/span><br\/> T\u00ecm t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9i c\u1ee7a 7 m\u00e0 nh\u1ecf h\u01a1n 20 b\u1eb1ng c\u00e1ch l\u1ea5y 7 nh\u00e2n l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c s\u1ed1 0, 1, 2,... <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: 7 . 0 = 0; 7 . 1 = 7; 7 . 2 = 14, ... <br\/> V\u00ec x $\\in$ B(7) , x < 20 $\\Rightarrow$ x $\\in$ {0; 7; 14} <br\/> <span class='basic_pink'> V\u1eady c\u00e1c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 0; 7; 14<\/span>"}]}],"id_ques":576},{"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/lv1/img\/9.jpg' \/><\/center> <br\/> C\u00f3 bao nhi\u00eau s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 l\u00e0 b\u1ed9i c\u1ee7a 33? <br\/> \u0110\u00e1p \u00e1n l\u00e0:","select":["A. 1 ","B. 2 ","C. 3 ","D. 4 "],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 33 . 0 = 0; 33 . 1 = 33; 33 . 2 = 66; 33 . 3 = 99; 33 . 4 = 132,...<br\/> Trong c\u00e1c b\u1ed9i tr\u00ean c\u1ee7a 33 c\u00f3 3 b\u1ed9i c\u00f3 hai ch\u1eef s\u1ed1 l\u00e0: 33; 66; 99 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. 3 <\/span> ","column":4}]}],"id_ques":577},{"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/lv1/img\/9.jpg' \/><\/center> <br\/> C\u00f3 bao nhi\u00eau s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1 l\u00e0 b\u1ed9i c\u1ee7a 17? <br\/> \u0110\u00e1p \u00e1n l\u00e0:","select":["A. 5 ","B. 6 ","C. 7 ","D. 4 "],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: 17 . 0 = 0; 17 . 1 = 17; 17 . 2 = 34 <br\/> 17 . 3 = 51; 17 . 4 = 68, 17 . 5 = 85; 17 . 6 = 102 ...<br\/> Trong c\u00e1c b\u1ed9i tr\u00ean c\u1ee7a 17 c\u00f3 5 b\u1ed9i c\u00f3 hai ch\u1eef s\u1ed1 l\u00e0: 17; 34; 51; 68; 85 <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A. 5 <\/span> ","column":4}]}],"id_ques":578},{"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/lv1/img\/2.jpg' \/><\/center> <br\/> T\u1eadp h\u1ee3p c\u00e1c b\u1ed9i c\u1ee7a 12 \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng t\u1ed5ng qu\u00e1t l\u00e0 B(12) = {15.k | k $\\in \\mathbb{N}$} <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\/> C\u00e1c b\u1ed9i c\u1ee7a 12 \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng t\u1ed5ng qu\u00e1t l\u00e0 12 . k (k $\\in \\mathbb{N}$) <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> SAI <\/b> <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":4}]}],"id_ques":579},{"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/lv1/img\/2.jpg' \/><\/center> <br\/> T\u1eadp h\u1ee3p c\u00e1c b\u1ed9i c\u1ee7a 3 \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng t\u1ed5ng qu\u00e1t l\u00e0 B(3) = {3.k | k $\\in \\mathbb{N}$} <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\/> C\u00e1c b\u1ed9i c\u1ee7a 3 \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng t\u1ed5ng qu\u00e1t l\u00e0 3 . k (k $\\in \\mathbb{N}$) <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 <b> \u0110\u00daNG <\/b> <br\/> <span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> ","column":4}]}],"id_ques":580}],"lesson":{"save":0,"level":1}}