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Indices — Maths STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7MathsIndices1 Mark
Question
Simplify : $\left[\left(\frac{2}{5}\right)^{-3}\right]^2$
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Answer

\begin{aligned}
\left[\left(\frac{2}{5}\right)^{-3}\right]^2 \\
=\left(\frac{2}{5}\right)^{(-3) \times 2}=\left(\frac{2}{5}\right)^{-6}
\end{aligned}

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