Question

what does i^(2) simplify to be? √-1 -1 √1 1

Explanation:

Step1: Recall definition of imaginary unit

The imaginary unit $i$ is defined as $i = \sqrt{- 1}$.

Step2: Calculate $i^2$

If $i=\sqrt{-1}$, then $i^2=(\sqrt{-1})^2=-1$.

Answer:

-1