Question

select the equivalent expression.
\\(\frac{1}{x^3}=?\\)
choose 1 answer:
a \\(x^{-3}\\)
b \\(x^{\frac{1}{3}}\\)

Explanation:

Step1: Recall negative exponent rule

For any non-zero $x$ and positive integer $n$, $\frac{1}{x^n}=x^{-n}$.

Step2: Apply rule to given expression

Substitute $n=3$ into the rule: $\frac{1}{x^3}=x^{-3}$.

Answer:

A. $x^{-3}$