Question

5. Evaluate
only 2 one​

Answer 1

i)

$= = > \: \: {(125)}^{ \frac{1}{3} } \\ \\ = = > \: \: ({5}^{3} )^{ \frac{1}{3} } \\ \\ = = > \: \: {5}^{ \cancel{3} \times \frac{1}{ \cancel{3}} } \\ \\ = = > \: \: 5$

ii)

$= = > \: \: {(81)}^{ \frac{3}{4} } \\ \\ = = > \: \: {( {3}^{4} )}^{ \frac{3}{4} } \\ \\ = = > \: \: {3}^{ \cancel{4} \times \frac{3}{ \cancel{4}} } \\ \\ = = > \: \: {3}^{3} \\ \\ = = > \: \: 27$