# 1 2 Square Root

1 2 Square Root. Simplify square root of 1/2. Any root of is. Combine and simplify the denominator. Tap for more steps.

Raise to the power of. Use the power rule to combine exponents. Let us find the square root of 180. We will have two pairs, i. e. , 1 and 80. Simplify 1/(( square root of 2)/2) step 1. Multiply the numerator by the reciprocal of the denominator. A perfect square is a number x where the square root of x is a number a such that a 2 = x and a is an integer. For example, 4, 9 and 16 are perfect squares since their square roots, 2, 3 and 4, respectively, are integers. The 2nd root of 81, or 81 radical 2, or the square root of 81 is written as  \sqrt[2]{81} = \sqrt.