0,5 - 5/41 + 1/2 - 36/41
(-2/3)² * 4/11 + 7/11 * (1/3)²
2 câu trả lời
Đáp án+Giải thích các bước giải:
`0,5-5/41+1/2-36/41`
`=1/2-5/41+1/2-36/41`
`=(1/2+1/2)-(5/41+36/41)`
`=2/2-41/41`
`=1-1`
`=0`
`(-2/3)^2 . 4/11+7/11 . (1/3)^2`
`=(-2)^2/3^2 . 4/11+7/11 . 1^2/3^2`
`=4/9 . 4/11+7/11 . 1/9`
`=16/99+7/99`
`=23/99`
