Identify the index in the radical below.
√3^4
A. 1
B. 2
C. 3
D. 4

Answer:
B. 2
Step-by-step explanation:
[tex]\sqrt{3^{4} }[/tex]
[tex]= \sqrt{(3^{2})^{2} }[/tex]
[tex]=3^{2}[/tex]
Therefore index of radical is 2.