Question

\(\dfrac{16^{11}.\left(-5\right)^{40}}{\left(-10\right)^{41}}\)dấu . là dấu nhân

Answer 1

\(=\dfrac{2^{44}\cdot5^{40}}{2^{41}\cdot5^{41}}=\dfrac{8}{5}\)

Answer 2

`= (2^44 xx (-5)^40)/(-10)^41)`

`= (2^40 xx 5^40 xx 2^4)/(-(10^41))`

`= (10^40 xx 2^4)/(-(10^41))`

`= -2^4/10`

`= -2^3/5`.

`= -8/5`

Answer 3

\(=\dfrac{\left(2^4\right)^{11}.\left(-5\right)^{40}}{2^{41}.\left(-5\right)^{41}}\)

\(=\dfrac{2^{44}}{2^{41}.\left(-5\right)}\)

\(=\dfrac{2^3}{-5}\)

\(=\dfrac{8}{-5}\)