Question

.

Answer 1

\(\bf \large x^{\frac{1}{3}} \times x^{\frac{1}{3}}\times x^{\frac{1}{3}}
\)

revise your exponents rules

Answer 2

http://www.math-play.com/image-exponents-rules.jpg <--- check the 1st one there

Answer 3

\(\bf \cfrac{1}{x^{-1}}\\ \quad \\
\textit{keep in mind that }a^{-n} = \cfrac{1}{a^n}\)

Answer 4

\(\bf \large \sqrt[11]{x^5\times x^4 \times x^2}\)
again, check your the 1st of the exponents rules in the picture above