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Multiple Choice Questions

What is the square root of 16 6 ........

Quantitative Aptitude (CDS) Simplification

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What is the square root of 16+6 $\sqrt{7}$ ?

$4+\sqrt{7}$

$4-\sqrt{7}$

3+ $\sqrt{7}$

3- $\sqrt{7}$

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Explanation:

(a+b)² = 16 + 6 $\sqrt{7}$
=> 2ab = 6 $\sqrt{7}$
=> ab = 3 $\sqrt{7}$
=> a=3 , b= $\sqrt{7}$
so 3+ $\sqrt{7}$ .

By: Munesh Kumari

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