Question

$find \: \: the \: value$

Answer 1

[(16)^1/2]^1/2 = [16]^1/2×1/2=[16]^1/4= 2

Answer 2

let's do this step by step
firstly let's do the problem in first bracket
I. e. (16)½
(16)½=4
and then we have to find (4)½
which is equal to 2
hope it helps you