{"segment":[{"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":[[["-20"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai28/lv1/img\/4.jpg' \/><\/center>S\u1ed1 li\u1ec1n sau c\u1ee7a -21 l\u00e0: _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> S\u1ed1 nguy\u00ean b \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ed1 li\u1ec1n sau c\u1ee7a s\u1ed1 nguy\u00ean a n\u1ebfu a < b v\u00e0 kh\u00f4ng c\u00f3 s\u1ed1 nguy\u00ean n\u00e0o n\u1eb1m gi\u1eefa a v\u00e0 b ( l\u1edbn h\u01a1n a v\u00e0 nh\u1ecf h\u01a1n b).<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>S\u1ed1 li\u1ec1n sau c\u1ee7a -21 l\u00e0: -20<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -20<\/span><\/span> <br\/> "}]}],"id_ques":1341},{"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":[[["-48"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai28/lv1/img\/4.jpg' \/><\/center>S\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a -47 l\u00e0: _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> S\u1ed1 nguy\u00ean a \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a s\u1ed1 nguy\u00ean b n\u1ebfu a < b v\u00e0 kh\u00f4ng c\u00f3 s\u1ed1 nguy\u00ean n\u00e0o n\u1eb1m gi\u1eefa a v\u00e0 b ( l\u1edbn h\u01a1n a v\u00e0 nh\u1ecf h\u01a1n b).<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>S\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a -47 l\u00e0: -48<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -48<\/span><\/span> <br\/> "}]}],"id_ques":1342},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" (-21) + 79 <span class='basic_hoi_black'>?<\/span> (-3) . (-8)","select":[" >"," < "," = "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: T\u00ednh k\u1ebft qu\u1ea3 c\u1ee7a t\u1eebng v\u1ebf<br\/>B\u01b0\u1edbc 2: So s\u00e1nh c\u00e1c k\u1ebft qu\u1ea3 \u0111\u00f3 v\u1edbi nhau<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/> $\\underbrace{(-21) + 79}_{58} $ <span class='basic_hoi_black'>?<\/span> $\\underbrace{(-3) . (-8)}_{24} $<br\/> M\u00e0 58 > 24<br\/>N\u00ean (-21) + 79 > (-3) . (-8)<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> ><\/span><\/span> <br\/> ","column":3}]}],"id_ques":1343},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" (-20) . (-36) <span class='basic_hoi_black'>?<\/span> 18 . 40","select":[" >"," < "," = "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: T\u00ednh k\u1ebft qu\u1ea3 c\u1ee7a t\u1eebng v\u1ebf<br\/>B\u01b0\u1edbc 2: So s\u00e1nh c\u00e1c k\u1ebft qu\u1ea3 \u0111\u00f3 v\u1edbi nhau<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/> $\\underbrace{(-20) . (-36)}_{720} $ <span class='basic_hoi_black'>?<\/span> $\\underbrace{18 . 40}_{720} $<br\/>N\u00ean (-20) . (-36) = 18 . 40<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> =<\/span><\/span> <br\/> ","column":3}]}],"id_ques":1344},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" T\u00ecm x, bi\u1ebft:<br\/>3x - (-17) = 14","select":["A. x = -1","B. x = 1","C. x = 3","D. x = -3"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: T\u00ecm 3x<br\/>B\u01b0\u1edbc 2: T\u00ecm x<\/span> <br\/><br\/><span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}3x - (-17)&=14\\\\3x + 17&= 14 \\\\3x&= 14 - 17\\\\3x&= - (17 - 14)\\\\3x&= -3\\end{align*}$<br\/>M\u00e0 3 . (-1) = (-3)<br\/>$\\Rightarrow$ x = -1<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A. x = -1<\/span><\/span> <br\/><\/span>","column":2}]}],"id_ques":1345},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" T\u00ecm x, bi\u1ebft:<br\/>13 - x = 39","select":["A. x = -26","B. x = 26","C. x = 51","D. x = -51"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*}13 - x&=39\\\\x&= 13 - 39 \\\\x&= - (39 - 13)\\\\x&= -26\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A. x = -26<\/span><\/span> <br\/>","column":2}]}],"id_ques":1346},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" T\u00ecm s\u1ed1 nguy\u00ean a, bi\u1ebft:<br\/>|a| = 2","select":["A. a = 2","B. a = -2","C. a = 2 ho\u1eb7c a = -2"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Kho\u1ea3ng c\u00e1ch t\u1eeb \u0111i\u1ec3m a \u0111\u1ebfn \u0111i\u1ec3m 0 tr\u00ean tr\u1ee5c s\u1ed1 l\u00e0 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a s\u1ed1 nguy\u00ean a<br\/> N\u00ean:<b> |x| = a (a $\\in$ N) th\u00ec x = a ho\u1eb7c x = -a<\/b><\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>|a| = 2 n\u00ean a = 2 ho\u1eb7c a = -2<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> C. a = 2 ho\u1eb7c a = -2<\/span><\/span> <br\/>","column":3}]}],"id_ques":1347},{"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":80,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai28/lv1/img\/5.jpg' \/><\/center> (-8) - [(-5) + 8] = _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u1ecf ngo\u1eb7c r\u1ed3i th\u1ef1c hi\u1ec7n t\u00ednh<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}&(-8) - [(-5) + 8] \\\\&= (-8) - (8 - 5)\\\\&= (-8) - 3\\\\&= - (8 + 3)\\\\&= -11\\end{align*}$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -11<\/span><\/span> <br\/> "}]}],"id_ques":1348},{"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":[[["30"]]],"list":[{"point":5,"width":80,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai28/lv1/img\/4.jpg' \/><\/center> 17 - 25 + 55 - 17 = _input_","hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}&17 - 25 + 55 - 17 \\\\&= (17 - 17) + (55 - 25)\\\\&= 0 + 30\\\\&= 30\\end{align*}$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> 30<\/span><\/span> <br\/> "}]}],"id_ques":1349},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c:<br\/>A = 2x + y - 8 v\u1edbi x = -3; y = -2","select":["A = 0","A = -14","A = 16","A = -16"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: Thay gi\u00e1 tr\u1ecb c\u1ee7a x, y v\u00e0o bi\u1ec3u th\u1ee9c<br\/>B\u01b0\u1edbc 2: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c<br\/><b>L\u01b0u \u00fd:<\/b><br\/>+ Mu\u1ed1n nh\u00e2n hai s\u1ed1 nguy\u00ean \u00e2m, ta nh\u00e2n hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang<br\/>+ Mu\u1ed1n nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u, ta nh\u00e2n hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang r\u1ed3i \u0111\u1eb7t d\u1ea5u (-) tr\u01b0\u1edbc k\u1ebft qu\u1ea3 nh\u1eadn \u0111\u01b0\u1ee3c<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Thay x = -3; y = -2 v\u00e0o bi\u1ec3u th\u1ee9c ta \u0111\u01b0\u1ee3c:<br\/>$\\begin{align*}A&=2. (-3) + (-2) - 8\\\\&= -6 - 2 - 8\\\\&= -(6 + 2 + 8)\\\\&= -16\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A = -16<\/span><\/span> <br\/>","column":2}]}],"id_ques":1350},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c:<br\/>A = x - 2y + 5 v\u1edbi x = 2; y = -4","select":["A = 14","A = 15","A = -14","A = -15"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: Thay gi\u00e1 tr\u1ecb c\u1ee7a x, y v\u00e0o bi\u1ec3u th\u1ee9c<br\/>B\u01b0\u1edbc 2: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c<br\/><b>L\u01b0u \u00fd:<\/b><br\/>+ Mu\u1ed1n nh\u00e2n hai s\u1ed1 nguy\u00ean \u00e2m, ta nh\u00e2n hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang<br\/>+ Mu\u1ed1n nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u, ta nh\u00e2n hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang r\u1ed3i \u0111\u1eb7t d\u1ea5u (-) tr\u01b0\u1edbc k\u1ebft qu\u1ea3 nh\u1eadn \u0111\u01b0\u1ee3c<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Thay x = 2; y = -4 v\u00e0o bi\u1ec3u th\u1ee9c ta \u0111\u01b0\u1ee3c:<br\/>$\\begin{align*}A&= 2 - 2.(-4) + 5\\\\&= 2 - (-8) + 5\\\\&= 2 + 8 + 5\\\\&= 10 + 5\\\\&= 15\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A = 15<\/span><\/span> <br\/>","column":2}]}],"id_ques":1351},{"time":9,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" H\u00e3y ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","select":["A. -7 $\\in$ N","B. -1 $\\in$ N","C. -2 $\\in$ Z","D. 4 $\\notin$ N"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/>-7 $\\notin$ N<br\/>-1 $\\notin$ N<br\/>-2 $\\in$ Z<br\/>4 $\\in$ N<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> C. -2 $\\in$ Z<\/span><\/span> <br\/>","column":2}]}],"id_ques":1352},{"time":9,"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/bai28/lv1/img\/6.jpg' \/><\/center>S\u1ed1 \u0111\u1ed1i c\u1ee7a -(-2) l\u00e0:","select":["A. 2","B. -2","C. |-2|","D. T\u1ea5t c\u1ea3 c\u00e1c \u0111\u00e1p \u00e1n tr\u00ean \u0111\u1ec1u sai"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Tr\u00ean tr\u1ee5c s\u1ed1, c\u00e1c \u0111i\u1ec3m c\u00e1ch \u0111\u1ec1u v\u00e0 n\u1eb1m \u1edf hai ph\u00eda c\u1ee7a \u0111i\u1ec3m 0 l\u00e0 c\u00e1c s\u1ed1 \u0111\u1ed1i nhau<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: -(-2) = 2<br\/>S\u1ed1 \u0111\u1ed1i c\u1ee7a 2 l\u00e0: -2<br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> B. -2<\/span><\/span> <br\/>","column":2}]}],"id_ques":1353},{"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":[[["20"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai28/lv1/img\/7.jpg' \/><\/center>(-2) . (-8) + 4 = _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Bi\u1ec3u th\u1ee9c ch\u1ee9a ph\u00e9p t\u00ednh nh\u00e2n v\u00e0 ph\u00e9p t\u00ednh c\u1ed9ng th\u00ec ta th\u1ef1c hi\u1ec7n t\u00ednh ph\u00e9p nh\u00e2n tr\u01b0\u1edbc, t\u00ednh ph\u00e9p c\u1ed9ng sau.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}A&= (-2) . (-8) + 4\\\\&= 16 + 4\\\\&= 20\\end{align*}$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> 20<\/span><\/span> <br\/> "}]}],"id_ques":1354},{"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":[[["-7"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai28/lv1/img\/9.jpg' \/><\/center>$(-2)^3$ + $1^4$ = _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> T\u00edch m\u1ed9t s\u1ed1 ch\u1eb5n th\u1eeba s\u1ed1 nguy\u00ean \u00e2m s\u1ebd mang d\u1ea5u (+)<br\/>T\u00edch m\u1ed9t s\u1ed1 l\u1ebb th\u1eeba s\u1ed1 nguy\u00ean \u00e2m s\u1ebd mang d\u1ea5u (-)<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}A&= (-2)^3 + 1^4\\\\&= -(2 . 2 . 2) + (1 . 1 . 1 . 1)\\\\&= -8 + 1\\\\&= -7\\end{align*}$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -7<\/span><\/span> <br\/> "}]}],"id_ques":1355},{"time":9,"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/bai28/lv1/img\/10.jpg' \/><\/center>Cho M = {3; -2; -4; 7}. T\u1eadp h\u1ee3p g\u1ed3m c\u00e1c ph\u1ea7n t\u1eed l\u00e0 s\u1ed1 \u0111\u1ed1i c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p M l\u00e0:","select":["A. {-3; -2; -4; 7}","B. {-3; 2; -4; 7}","C. {3; -2; 4; -7}","D. {-3; 2; 4; -7}"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Tr\u00ean tr\u1ee5c s\u1ed1, c\u00e1c \u0111i\u1ec3m c\u00e1ch \u0111\u1ec1u v\u00e0 n\u1eb1m \u1edf hai ph\u00eda c\u1ee7a \u0111i\u1ec3m 0 l\u00e0 c\u00e1c s\u1ed1 \u0111\u1ed1i nhau<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> T\u1eadp h\u1ee3p g\u1ed3m c\u00e1c ph\u1ea7n t\u1eed l\u00e0 s\u1ed1 \u0111\u1ed1i c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p M l\u00e0: {-3; 2; 4; -7}<br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> D. {-3; 2; 4; -7}<\/span><\/span> <br\/>","column":2}]}],"id_ques":1356},{"time":9,"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/bai28/lv1/img\/2.jpg' \/><\/center>Cho M = {2; 4 ; -1; -9}. T\u1eadp h\u1ee3p g\u1ed3m c\u00e1c ph\u1ea7n t\u1eed l\u00e0 s\u1ed1 \u0111\u1ed1i c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p M l\u00e0:","select":["A. {-2; -4 ; 1; -9}","B. {-2; 4 ; 1; 9}","C. {-2; -4 ; 1; 9}","D. {-2; -4 ; -1; -9}"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Tr\u00ean tr\u1ee5c s\u1ed1, c\u00e1c \u0111i\u1ec3m c\u00e1ch \u0111\u1ec1u v\u00e0 n\u1eb1m \u1edf hai ph\u00eda c\u1ee7a \u0111i\u1ec3m 0 l\u00e0 c\u00e1c s\u1ed1 \u0111\u1ed1i nhau<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> T\u1eadp h\u1ee3p g\u1ed3m c\u00e1c ph\u1ea7n t\u1eed l\u00e0 s\u1ed1 \u0111\u1ed1i c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p M l\u00e0: {-2; -4 ; 1; 9}<br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> C. {-2; -4 ; 1; 9}<\/span><\/span> <br\/>","column":2}]}],"id_ques":1357},{"time":9,"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/bai28/lv1/img\/4.jpg' \/><\/center>T\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a -6 l\u00e0:","select":["A. {-6; -3; -2; -1; 1; 2; 3; 6}","B. {-6; -3; -1; 1; 3}","C. { -3; -1; 1; 3}","D. {-6; -3; 3; 6}"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Cho a, b $\\in$ Z v\u00e0 b $\\ne $ 0. N\u1ebfu c\u00f3 s\u1ed1 nguy\u00ean q sao cho a = q.b th\u00ec ta n\u00f3i a chia h\u1ebft cho b. Ta c\u00f2n n\u00f3i a l\u00e0 b\u1ed9i c\u1ee7a b v\u00e0 b l\u00e0 \u01b0\u1edbc c\u1ee7a a.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>\u01af(-6) = {-6; -3; -2; -1; 1; 2; 3; 6}<br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A. {-6; -3; -2; -1; 1; 2; 3; 6}<\/span><\/span> <br\/>","column":2}]}],"id_ques":1358},{"time":9,"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/bai28/lv1/img\/5.jpg' \/><\/center>T\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c \u01b0\u1edbc c\u1ee7a -5 l\u00e0:","select":["A. {-5; -1; 1}","B. {-5; -1; 0; 1; 5}","C. {-1; 1; 5}","D. {-5; -1; 1; 5}"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Cho a, b $\\in$ Z v\u00e0 b $\\ne $ 0. N\u1ebfu c\u00f3 s\u1ed1 nguy\u00ean q sao cho a = q.b th\u00ec ta n\u00f3i a chia h\u1ebft cho b. Ta c\u00f2n n\u00f3i a l\u00e0 b\u1ed9i c\u1ee7a b v\u00e0 b l\u00e0 \u01b0\u1edbc c\u1ee7a a.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>\u01af(-5) = {-5; -1; 1; 5}<br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> D. {-5; -1; 1; 5}<\/span><\/span> <br\/>","column":2}]}],"id_ques":1359},{"time":9,"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/bai28/lv1/img\/10.jpg' \/><\/center>T\u1eadp h\u1ee3p c\u00e1c b\u1ed9i c\u1ee7a -5 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u1ecf h\u01a1n 20 l\u00e0:","select":["A. {...; -20; -15; -10; -5; 0; 5; 10; 15; 20; ...}","B. {...; -20; -15; -10; -5; 0; 5; 10; 15}","C. {-15; -10; -5; 0; 5; 10; 15}","D. {-15; -10; -5; 0; 5; 10; 15; 20; ...}"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Cho a, b $\\in$ Z v\u00e0 b $\\ne $ 0. N\u1ebfu c\u00f3 s\u1ed1 nguy\u00ean q sao cho a = q.b th\u00ec ta n\u00f3i a chia h\u1ebft cho b. Ta c\u00f2n n\u00f3i a l\u00e0 b\u1ed9i c\u1ee7a b v\u00e0 b l\u00e0 \u01b0\u1edbc c\u1ee7a a.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>B(-5) = {...; -20; -15; -10; -5; 0; 5; 10; 15; 20; ...}<br\/>C\u00e1c b\u1ed9i c\u1ee7a -5 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u1ecf h\u01a1n 20 l\u00e0: -15; -10; -5; 0; 5; 10; 15<br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> C. {-15; -10; -5; 0; 5; 10; 15}<\/span><\/span> <br\/>","column":2}]}],"id_ques":1360}],"lesson":{"save":0,"level":1}}