Question

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Answer 1

Answer:

Given,

$\sqrt[2]{225 \times 121} \\ = \sqrt[2]{225} \times \sqrt[2]{121} \\ = \sqrt[2]{ {(15)}^{2} } \times \sqrt[2]{ {(11)}^{2} } \\ = {(15)}^{ \frac{2}{2} } \times {(11)}^{ \frac{2}{2} } \\ = 15 \times 11 \\ = 165$

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