Cube root of √√(0.000064) is equal to (a) 0.02 (b) 0.2 (c) 2 (d) 0.4

Question

\(\sqrt[3]{\sqrt{0.000064}}\) is equal to

(a) 0.02

(b) 0.2

(c) 2

(d) 0.4

Answer 1

(b) 0.2

\(\sqrt[3]{\sqrt{0.000064}}\) = \(\sqrt[3]{\sqrt\frac{64}{1000000}}\) 

\(\sqrt[3]{\frac{8}{1000}}\) = \(\frac{2}{10}\) = 0.2