Question

Write the expression in the standard form a + bi.

Answer 1

Write out the expression

`i^(22)`
`\begin{gathered} i^(22) \\ \text{can be written as} \\ (i^2)^(11) \end{gathered}`

Recall that

`i^2=-1`

Replace into the expression above

`(-1)^(11)=-1`

Hence

`i^(22)=-1`

Therefore

The first option is Right