Question
Evaluate: $\big[(16)^{\frac{1}{2}}\big]^{\frac{1}{2}}$
✓
Answer
$\big[(16)^{\frac{1}{2}}\big]^{\frac{1}{2}}$
$=\Big[(4^2)^{\frac{1}{2}}\Big]^{\frac{1}{2}}$
$=\Big[4^{\frac{1}{2}}\Big]$
$=2^{2\times\frac{1}{2}}$
$=2$
$=\Big[(4^2)^{\frac{1}{2}}\Big]^{\frac{1}{2}}$
$=\Big[4^{\frac{1}{2}}\Big]$
$=2^{2\times\frac{1}{2}}$
$=2$
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