Question

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Answer 1

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

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

в)  $\sqrt{2^6*5^4}=2^3*5^2=8*25=200$

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