Question

I have no idea how to do this will you help me please

Answer 1

Using the following property

`a^(bc)=(a^b)^c`

We can rewrite our expression as

`i^(86)=i^(2*43)=(i^2)^(43)`

i is the imaginary number, also know as the square root of - 1. When squared, the imaginary number is equal to - 1.

`(i^2)^(43)=(-1)^(43)`