## Intermediate Algebra for College Students (7th Edition)

$-1$; $-1$; $-i$
RECALL: (1) $i^2=-1$ (2) For any odd integer $n$, $(-1)^n=-1$. Thus, filling the missing expressions gives: $(-1)^{17}i = (-1)i =-i$ Therefore, the missing expressions in the given statement are $-1$, $-1$, and $-i$, respectively.