Question

What is the value of 5^3¡^9

Answer 1

`125i`

Explanation:

We want to find

`5^3i^9`

This can be rewritten as;

`5^3i^8* i`

`5^3(i^2)^4* i`

Recall that;
`i^2=-1`

`5^3(-1)^4* i`

We evaluate now to obtain;

`125(1)* i=125i`