Decide Whether the Expression Has Been Simplified Correctly $\left(\frac{\mathrm{a}}{4}\right)^{9}=\frac{\mathrm{a}^{9}}{4^{9}}$

True/False

Decide whether the expression has been simplified correctly.
- $\left(\frac{\mathrm{a}}{4}\right)^{9}=\frac{\mathrm{a}^{9}}{4^{9}}$