Question

calcule e simplifique letra
a) √2.√18



b) √6
______
√18


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Answer 1

Resposta:

$a) \sqrt{2}.\sqrt{18}\\ \\ \sqrt{2}.\sqrt{2.9}\\ \\ \sqrt{2}.\sqrt{2}.\sqrt{9}\\ \\ \sqrt{2.2}.\sqrt{9}\\ \\ \sqrt{4}.\sqrt{9}\\ 2.3\\ \\ 6$

b)

$\frac{\sqrt{6} }{\sqrt{18} } =\frac{\sqrt{6} }{\sqrt{6.3} }=\frac{\sqrt{6} }{\sqrt{6}.\sqrt{3} }\\ \\ \frac{\sqrt{6} }{\sqrt{6} }.\frac{1}{\sqrt{3} }=1.\frac{1}{\sqrt{3} }=\frac{1}{\sqrt{3} }\\ \\ \frac{1}{\sqrt{3} }.\frac{\sqrt{3} }{\sqrt{3} } =\frac{\sqrt{3} }{\sqrt{9} }=\frac{\sqrt{3} }{3}$

bons estudos!