Answer
$-1, 0$, undefined, $0$, undefined, $-1$
Work Step by Step
1. Given $\theta=-90^\circ$, we have:
2. $sin\theta=-1$
3. $cos\theta=0$
4. $tan\theta=\frac{sin\theta}{cos\theta}$ undefined
5. $cot\theta=0$
6. $sec\theta=\frac{1}{cos\theta}$ undefined
7. $csc\theta=\frac{1}{sin\theta}=-1$
