Question

8. Qual o valor numérico da expressão
√a√a√a² quando a = 0,31. ?​

Answer 1

$\boxed{\begin{array}{l}\sf\sqrt{a\sqrt{a\sqrt{a^2}}}=\sf\sqrt{a\sqrt{a\cdot a}}\\\sf\sqrt{\sqrt{a^2}}\\\sf=\sqrt{a}\\\sf=\sqrt{0,31}=\sqrt{\dfrac{31}{100}}=\dfrac{\sqrt{31}}{10}\end{array}}$