Definition Of N^thRoot

In aⁿ = b, where a and b are real numbers and n is a positive integer, a is an n^th root of b. It can also be written as 

Examples of N^thRoot

Following are some examples on Nth Root.
3 is the fouth root of 81. That is, 3 has to be multiplied by itself 4 times to give 81
2 is the sixth root of 64. That is, 2 has to be multiplied by itself 4 times to give 64
4 is the square root of 16.
5 is the cube root of 125.

Video Examples: Simplifying The Nth Root

Solved Example on N^thRoot

Ques: Find: 

Choices:

A. 2ab² 
B. 2a²b²
C. 2a⁶b²  
D. 2a²b
Correct Answer: A

Solution:

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