a, (1/2)^7 : (1/2)^3 b, 3/7 +(-5/2)+(-3?5 c. 2^4 :2^6/2^10 d, 3,5 . (-0,25).4 Làm giúp mình với 07/12/2021 Bởi Samantha a, (1/2)^7 : (1/2)^3 b, 3/7 +(-5/2)+(-3?5 c. 2^4 :2^6/2^10 d, 3,5 . (-0,25).4 Làm giúp mình với
a, ($\frac{1}{2}$)$^{7}$ : ($\frac{1}{2}$)$^{3}$ = ($\frac{1}{2}$)$^{7 – 3}$ = ($\frac{1}{2}$)$^{4}$ b, $\frac{3}{7}$ + ($\frac{-5}{2}$) + ($\frac{-3}{5}$) = $\frac{-29}{14}$ + ($\frac{-3}{5}$) = $\frac{-187}{70}$ c, $2^{4}$ : $\frac{2^{6}}{2^{10}}$ = $2^{4}$ : $2^{(-4)}$ = 256 d, 3,5 . (-0,25) . 4 = 3,5 . (-1) = -3,5 # Here you are Bình luận
`a, (1/2)^7 : (1/2)^3 ` `=(1/2)^4` `b,3/7+(-5/2)+(-3/5)` `=30/70+(-175/70)+(-42/70)` `=-145/70+(-42/70)` `=-187/70` `c. 2^4 :2^6/2^10 ` `=2^4: 1/2^4` `=2^4 . 2^4/1` `=1` `d, 3,5 . (-0,25).4` `=3,5. -1` `=-3,5` Bình luận
a, ($\frac{1}{2}$)$^{7}$ : ($\frac{1}{2}$)$^{3}$ = ($\frac{1}{2}$)$^{7 – 3}$ = ($\frac{1}{2}$)$^{4}$
b, $\frac{3}{7}$ + ($\frac{-5}{2}$) + ($\frac{-3}{5}$) = $\frac{-29}{14}$ + ($\frac{-3}{5}$) = $\frac{-187}{70}$
c, $2^{4}$ : $\frac{2^{6}}{2^{10}}$ = $2^{4}$ : $2^{(-4)}$ = 256
d, 3,5 . (-0,25) . 4 = 3,5 . (-1) = -3,5
# Here you are
`a, (1/2)^7 : (1/2)^3 `
`=(1/2)^4`
`b,3/7+(-5/2)+(-3/5)`
`=30/70+(-175/70)+(-42/70)`
`=-145/70+(-42/70)`
`=-187/70`
`c. 2^4 :2^6/2^10 `
`=2^4: 1/2^4`
`=2^4 . 2^4/1`
`=1`
`d, 3,5 . (-0,25).4`
`=3,5. -1`
`=-3,5`