Question

Simplify the expression [ { ( 81)-1/2 }-1/4 ]2 -1/2 -1/4 are exponents

Answer 1

Is this right.....Is 2 also an exponent ?

Answer 2

3

$\begin{aligned}& {\left[\left\{(81)^{\frac{-1}{2}}\right\}^{\frac{-1}{4}}\right]^{2} } \\\Rightarrow & {\left[\frac{\int}{8}(81)^{\frac{-1}{2}} \times \frac{-1}{4} \times 2\right.} \\\Rightarrow &(81)^{\frac{1}{4}} \\\Rightarrow &(3 \times 3 \times 3 \times 3)^{\frac{1}{4}} \\\Rightarrow &\left(3^{4}\right)^{\frac{1}{4}} \\\Rightarrow & 3^{\frac{1}{4} \times} \\\Rightarrow & 3\end{aligned}$

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