Adding the indices gives \(5\frac{1}{2}\) which is \(\frac{11}{2}\). \(= {y^{\frac{{11}}{2}}}\) Now try the examples questions below.
Indices show where a number has been multiplied by itself, eg squared or cubed, or to show roots of numbers, eg square root. Check your understanding of the process with this National 5 Maths quiz.