Question

Me ajudem a resolver Urgente...

Answer 1

Resposta:

a) 1; b) $\frac{5\sqrt{3} .\sqrt{30} }{3}$; c) 60

Explicação passo-a-passo:

a) $\frac{\sqrt{40/5} }{\sqrt{8}} = \frac{\sqrt{8}}{\sqrt{8}} = 1$

b) $\frac{\sqrt{5} .\sqrt{5} + \sqrt{2}.\sqrt{5} }{\sqrt{(2-1) . (2+1)} } = \frac{\sqrt{25} +\sqrt{10} }{\sqrt{1(3)}} = \frac{5\sqrt{10} }{\sqrt{3}} = \frac{5\sqrt{10} }{\sqrt{3}} . \frac{\sqrt{3}}{\sqrt{3}} = \frac{5\sqrt{30} }{3}$

c) $\frac{5\sqrt{12}.\sqrt{2} . 3\sqrt{8} }{\sqrt{12} } = 5\sqrt{2} . 3\sqrt{4}.\sqrt{2}} = 5.3.2.\sqrt{2}.\sqrt{2} = 30.\sqrt{4} = 30.2 = 60$