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प्रश्न
Find x, if
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उत्तर
\[\left( \frac{5}{4} \right)^{- x} \div \left( \frac{5}{4} \right)^{- 4} = \left( \frac{5}{4} \right)^5\]
\[\left( \frac{5}{4} \right)^{- x+4} = \left( \frac{5}{4} \right)^5\]
-x + 4 = 5
-x = 1
x = -1
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Find the value of `{((-2)/3)^(-2)}^2`
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\[\left\{ 4^{- 1} \times 3^{- 1} \right\}^2\]
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