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\((\frac{25}{49})^{\frac{1}{2}}\)= .........................A) 5/7B) 1/7C) 1/3D) -3 |
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Answer» Correct option is (A) 5/7 \((\frac{25}{49})^\frac{1}{2}=\left(\cfrac{5^2}{7^2}\right)^\frac{1}{2}=\left[(\frac{5}{7})^2\right]^\frac{1}{2}\) \(=(\frac{5}{7})^{2\times\frac12}=(\frac{5}{7})^1=\frac{5}{7}\) Correct option is A) 5/7 |
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