Question

5^-8 * 5^10-7^-3:7^-5+((3/4)^2)^-1
Вычислить

Answer 1

$5^{-8}$ * $5^{10}$ - $7^{-3}$ : $7^{-5}$ +( $\frac{3}{4}^2$)^-1 = $5^{2}$ - $7^{2}$ + ($\frac{3}{4}$)^-2 = 25 - 49 + $\frac{16}{9}$ = $-\frac{200}{9}$