Question

qual e a raiz quadrada de 45 ​

Answer 1

$\sqrt{45}$

$=\sqrt{3^2\cdot \:5}$

$\sqrt{3^2\cdot \:5}=\sqrt{3^2}\sqrt{5}$

$\sqrt{3^2}\sqrt{5}$

$\sqrt{3^2}=3$

= $3\sqrt{5}$

Resposta $3\sqrt{5}$ $\mathrm{Decimal:\quad }\:6.70820$

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