Question

how do you rationalize a square root in a denominator?

Answer 1

just multiply numerator and denominator by the denominator

Answer 2

Multiply it by a value of 1 or by the square root over the square root. 1/square root 2 x square root 2/square root 2

Answer 3

e.g.:\[\frac{3}{\sqrt{2}}=\frac{3}{\sqrt{2}}*\frac{\sqrt{2}}{\sqrt{2}}=\frac{3\sqrt{2}}{2}\]