Question

Помогите пожалуйста!!!!!!!

√14 умножить на √ 6

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              √ 21

Answer 1

sqrt(14)*sqrt(6)/sqrt(21)=sqrt(14*6/21)=sqrt(2*2)=2

Answer 2

$frac{sqrt{14}*sqrt{6}}{sqrt{21}}$=$frac{sqrt{14*6}}{sqrt{21}}$=$frac{sqrt{84}}{sqrt{21}}$$frac{sqrt{4*21}}{sqrt{21}}$=frac{sqrt{14*6}}{sqrt{21}}$frac{2sqrt{21}}{sqrt{21}}$=2