Lesson 1 Learning Square and Cube (in Hindi)

Lesson 2 of 5 • 3 upvotes • 13:59mins

Meghna Mittal

In mathematics, a square root of a number a is a number y such that y2 = a; in other words, a number y whose square (the result of multiplying the number by itself, or y⋅y) is a.[1] For example, 4 and −4 are square roots of 16 because 42 = (−4)2 = 16. Every nonnegative real number ahas a unique nonnegative square root, called the principal square root, which is denoted by √a, where √ is called the radical sign or radix.