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What is the value of \(\sqrt{\frac{49}{64}}\)?

Answer and explanation

Correct answer: \(\frac{7}{8}\)

Taking the square root of the numerator and denominator gives \(\sqrt{\frac{49}{64}}=\frac{\sqrt{49}}{\sqrt{64}}=\frac{7}{8}\). The principal square root is taken as positive, so \(-\frac{7}{8}\) would not be the answer. In exams, simplify the numerator and denominator separately under the square root.

Related tags

Real NumbersFractional Square RootsPrincipal Square RootNumber SystemsMathematicsClass 9 Mcq

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