Question

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Answer 1

$intlimits^1_0 frac{dx}{ sqrt{x} } = intlimits^1_0 frac{dx}{ x^{ frac{1}{2} } } = intlimits^1_0 x^{ -frac{1}{2} } = frac{x^{ -frac{1}{2}+1}}{ -frac{1}{2}+1} Big |^1_0=2 sqrt{x} Big |^1_0=2-0=2$