Question

why root and square will be cancel in
${ \sqrt{2} }^{2}$

Answer 1

$\sqrt{2} is \: squared \: the \: answer \: is \: \sqrt{2 \times 2} is \: equal \: to \: 2 \: so \: the \: squre \: and \: roots \: are \: canceld$

Answer 2

root = 1/2

${2}^{ \frac{1}{2} \times 2} = 2 {}^{1} = 2$