Question

find the value of
$\sqrt{10} \times \sqrt{15}$
​

Answer 1

$= \sqrt{10} \times \sqrt{15} \\ = \sqrt{2 \times 5 } \times \sqrt{3 \times 5} \\ = \sqrt{2 } \times \sqrt{5} \times \sqrt{3} \times \sqrt{5} \\ = 5 \sqrt{6}$

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