Question

How do you simplify `(81/16) ^(-1/4)`?

Answer 1

`=2/3`

Explanation:

`(81/16)^-(1/4)`
`=(16/81)^(1/4)`
`=root4(16)/root4(81)`
`=root4(2times2times2times2)/root4(3times3times3times3`
`=2/3`