Question

calculati geometrica a numerelor​

Answer 1

Răspuns:

a) mg = $\sqrt{a *b}$ =$\sqrt{12*3}$ =$\sqrt{36}$=6

b) $\sqrt{8*2}$ =$\sqrt{16}$=4

c) $\sqrt{18*8} =\sqrt{144} =12$

d)  $\sqrt{3 \frac{1}{5} *5}$=$\sqrt{\frac{3*5+1}{5}* 5}$=$\sqrt{\frac{16}{5}*5 } =\sqrt{16} =4$

e)$\sqrt{\frac{7}{12}*2 \frac{1}{3} } =\sqrt{\frac{7}{12} *\frac{2*3+1}{3} } =\sqrt{\frac{7}{12} *\frac{7}{3} }=\sqrt{\frac{49}{36} }=\frac{\sqrt{49} }{\sqrt{36} } =\frac{7}{6}$

f) $\sqrt{\sqrt{5} ^{-1} *\sqrt{\frac{5}{16} } } =\sqrt{\frac{1}{\sqrt{5} }*\frac{\sqrt{5} }{\sqrt{16} } }=\sqrt{\frac{1}{\sqrt{16} } } =\sqrt{\frac{1}{4} } =\frac{\sqrt{1} }{\sqrt{4} } =\frac{1}{2}$

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