Question

помогите пожалуйста с решением

Answer 1

$1. \ a) 2* sqrt{12}=2* sqrt{3*4}=2*2 sqrt{3}=4 sqrt{3} \ b) frac{1}{5}* sqrt{200}= frac{1}{5}* sqrt{100*2}= frac{1}{5}*10* sqrt{2}= 2sqrt{2} \ c) frac{ sqrt{44} }{2}= frac{ sqrt{4*11} }{2}= frac{2 sqrt{11} }{2}= sqrt{11} \ 2. \ a) frac{1}{2} sqrt{20}= sqrt{20*0,25}= sqrt{5} \ b)6 sqrt{2}= sqrt{2*36}= sqrt{72} \ c) -frac{2}{3} sqrt{45} =- sqrt{45* frac{4}{9} }=- sqrt{20} \ 3. \ a)2 sqrt{5}= sqrt{20} \ 3 sqrt{2}= sqrt{18}$
$2 sqrt{5} textgreater 3 sqrt{2} \ b) frac{1}{3} sqrt{216} = sqrt{216* frac{1}{9} }= sqrt{24} \ sqrt{24}= frac{1}{3} sqrt{216}$