Question

Упростите  выражение плиз

Answer 1

$frac{ sqrt{7} * sqrt{14} }{ sqrt{21} } * sqrt{3} = frac{ sqrt{7} * sqrt{14} * sqrt{3} }{ sqrt{21} } = frac{ sqrt{7} * sqrt{14} * sqrt{3} }{ sqrt{7}* sqrt{3} } = frac{1* sqrt{14} *1}{1*1} = \ = sqrt{14}$

Answer 2

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