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Nguyễn Bích Ngọc
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2023-12-26 20:56:50
a) 0,75+\(\dfrac{9}{5}\left(1,5-\dfrac{2}{3}\right)^2\)
=0,75+\(\dfrac{25}{36}\)
=\(\dfrac{13}{9}\)
b)\(\dfrac{-22}{25}+\left(\dfrac{22}{7}-0,12\right)\)
=\(\dfrac{-22}{25}\)+\(\dfrac{529}{175}\)
=\(\dfrac{-241}{175}\)
2023-10-25 21:18:16
GT |
a và b phân biệt a // c b // c |
KL | a // b |
2023-10-25 21:17:37
GT |
a // b a c |
KL | c b |
2023-10-25 21:17:35
a) bằng nhau
b)3 đường thẳng song song với nhau
2023-10-25 21:17:32
a) bằng nhau
b) vuông góc
2023-10-25 21:17:24
GT |
|
KL | |