Question

Resolva:
a) 3√7 · √3 =

Answer 1

Responda:

3$\sqrt{21}$

≈13,74773

Answer 2

Resposta: raiz quadrada de 189

3.$3^{\frac{1}{2} }$$\sqrt{7$= $3^{\frac{1}{2}+1 } \sqrt{7} = 3^{\frac{3}{2} } \sqrt{7} =\sqrt{3^{3} } \sqrt{7} =\sqrt{3^{3}.7 } = \sqrt{27.7} =\sqrt{189}$

Explicação passo-a-passo: