Answer:
Step-by-step explanation:
nth root of a number 'a' is represented by the expression,
[tex]\sqrt[n]{a}[/tex]
In this expression 'n' = Index of of the radical
[tex]\sqrt[4]{16}[/tex] is called the 4th root of 16.
In [tex]\sqrt[4]{16}[/tex], the index is 4 and the radicand is 16.
4th root of 16 can be represented by [tex]\sqrt[4]{16}[/tex]
[tex]\sqrt[4]{16}=(16)^{\frac{1}{4}}[/tex]
[tex]=(2^{4})^{\frac{1}{4}}[/tex]
= 2
