Question

{(2^4)^1/2}^? = 256​

Answer 1

$({2}^{4} ) {}^{ \frac{1}{2} } \\ \\ = 2 {}^{4 \times \frac{1}{2} } \\ \\ = 2 {}^{2} \\ \\ = 4$

$Now, 4 {}^{4} \: = 256$

Thus, required answer is 4.