giá trị của A=0,(1).5+0,(4)
giúp mình nhé ;)
mình sẽ tick cho ngươi trả lời đầu tiên
làm ơn nha :) :(
K
Khách
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Những câu hỏi liên quan
1 tháng 3 2016
=> y = x4( 5x + 10 ) => x4 = 0 hoặc 5x + 10 = 0
x4 = 0 thì x = 0
5x + 10 = 0 thì x = -2
Vậy tập hợp đó là { -2 ; 0 }
T
3
KV
1 tháng 10 2023
A = 0,(36) - 0,(71)
= 36/99 - 71/99
= -35/99
B = [3,(12) - 2,(5)] : 0,(14)
= (103/33 - 203/99) : 14/99
= 106/99 : 14/99
= 53/7
1 tháng 10 2023
\(A=0,\left(36\right)-0,\left(71\right)\)
\(A=\dfrac{36}{99}-\dfrac{71}{99}=-\dfrac{35}{99}=-0,\left(35\right)\)
\(B=\left[3,\left(12\right)-2,\left(5\right)\right]:0,\left(14\right)\)
\(B=\left(\dfrac{3\cdot99+12}{99}-\dfrac{2\cdot9+5}{9}\right):\dfrac{14}{99}\)
\(B=\left(\dfrac{309}{99}-\dfrac{23}{9}\right):\dfrac{14}{99}\)
\(B=\dfrac{56}{99}:\dfrac{14}{99}\)
\(B=4\)
A=0,(1).5+0,(4)
=0,(5)+0,(4)
=5/9+4/9
=9/9=1
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