(a½) ^5=.................

[tex] = ({a}^{ \frac{1}{2} } )^{5} \\ = {a}^{( \frac{1}{2} \times 5) } \\ = {a}^{ \frac{5}{2} } [/tex]

(a½)^5 = a½×5 = a^5/2 = ^5√a²