## Precalculus: Mathematics for Calculus, 7th Edition

$-i$
$i^{1002}$ The basic rules of $i$ go as follows: $i^0 = 1$ $i^1 = i$ $i^2 = -1$ $i^3 = -i$ The $2$ in $1002$ automatically makes the statement, $-1$ despite the $1000$.