Question

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Answer 1

a)    $sqrt{169}-3sqrt{0,36}=13-3*0,6=13-1,8=11,2$

б)   $sqrt{3frac{1}{7}}*sqrt{frac{7}{88}}=sqrt{frac{22}{7}}*sqrt{frac{7}{88}}=sqrt{frac{22*7}{7*88}}=sqrt{frac{1}{4}}=frac{1}{2}$

в)  $sqrt{2^6*5^4}=2^3*5^2=8*25=200$

г)   $frac{sqrt{500}}{sqrt{10}*sqrt{32}}=frac{sqrt{5*100}}{sqrt{10}*sqrt{16*2}}=frac{10sqrt{5}}{sqrt{10}*4sqrt{2}}=frac{10sqrt{5}}{sqrt{5}*sqrt{2}*4sqrt{2}}=frac{5}{sqrt{2}*2sqrt{2}}=frac{5}{2*2}=frac{5}{4}=1,25$