Question

What is the value of 9^-1/2

Answer 1

81-1/2

80/2

40 and right than say

Answer 2

`(1)/(3)`

Explanation:

Using the rule of exponents/ radicals

`a^(-m)` ⇔
`(1)/(a^(m) )`

`a^{(1)/(2) }` ⇔
`√(a)`

Given

`9^{-(1)/(2) }`

=
`\frac{1}{9^{(1)/(2) } }`

=
`(1)/(√(9) )`

=
`(1)/(3)`