Question

please help me out
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Answer 1

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$\sqrt{144} \times \sqrt{99} \\ \\ = \sqrt{12 \times 12} \: \: \times \sqrt{3 \times 3 \times 11} \\ \\ = 12 \times 3 \sqrt{11} \\ \\ = 36 \sqrt{11}$

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Answer 2

Answer:

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