Question

$\sqrt{2 \times \sqrt{40.5} }$
efetue essa expressão

Answer 1

Olá!
 
     $\sqrt{2\times\sqrt{40\cdot 5}}=\sqrt{2\sqrt{2^3\cdot 5\cdot 5}}=\sqrt{2\cdot 2\cdot 5\sqrt{2}}=\\ \\ = 2\sqrt{5\sqrt{2}}=2\sqrt{5}\sqrt{\sqrt{2}}=2\sqrt{5}\sqrt[4]{2}.$



Bons estudos!