Question

Вычислите:
1)$sqrt[9]{512}$
2)$sqrt[4]{54*24}$
3)$frac{5^4*49^-^3}{7^-^7*25^3}$

Answer 1

$1) sqrt[9]{2^9} =2$
$2) sqrt[4]{27*2*3*8}=3*2=6$
$3)5^4*7 ^{-6}/(7 ^{-7}*5^6)=7/5^2=7/25$