Watch this video to learn about the rules of surds. For example, \(\sqrt 4 = 2\) is not a surd. However \(\sqrt 5\) is a surd. If you use a calculator, you will see that \(\sqrt 5 = 2.236067977...\) ...

Adding the indices gives \(5\frac{1}{2}\) which is \(\frac{11}{2}\). \(= {y^{\frac{{11}}{2}}}\) Now try the examples questions below.