Question

find the value of [ 81 divided by 625 ] raised to power one upon four

Answer 1

${\left[\frac{81}{625}\right]}^{1/4}={\left[\frac{3\times 3\times 3\times 3}{5\times 5\times 5\times 5}\right]}^{1/4}={\left[{\left({\displaystyle \frac{3}{5}}\right)}^4\right]}^{1/4}={\left[\frac{3}{5}\right]}^{4\times \frac{1}{4}}={\left[\frac{3}{5}\right]}^1=\frac{3}{5}$