Evaluate :
(15)−2\Big(\dfrac{1}{5}\Big)^{-2}(51)−2
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Given,
Simplifying the expression :
⇒(15)−2⇒52⇒25.\Rightarrow \Big(\dfrac{1}{5}\Big)^{-2} \\[1em] \Rightarrow 5^2 \\[1em] \Rightarrow 25.⇒(51)−2⇒52⇒25.
Hence, (15)−2=25\Big(\dfrac{1}{5}\Big)^{-2} = 25(51)−2=25.
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