Math, asked by prachiraghav905, 1 month ago

simplify step by step

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Answered by pankajraoyadav1999

1

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${ (- 2 \5) }^{ - 7 + 9} \: \div ( - 2 \5) {}^{2} \\ (- 2 \5) {}^{2} \div \: ( - 2 \5) {}^{2} \\ ( - 2 \5) { }^{2 - 2 } \\ = {1}^5 \\ 1$

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