Question

Which of the following is the radical expression of a to the four ninths power

Answer 1

Answer:

$\sqrt[9]{a^{4}}$

Step-by-step explanation:

To convert a fraction form into a radical form you need to know that the denominator will be the root index and the numerator will be the exponent into the root. For the case of four ninths:

$a^{\frac{4}{9}} = \sqrt[9]{a^{4}} .$