- #1

- 11

- 0

## Homework Statement

Solve for t:

[-2(t

^{2}+1) / 9(t

^{2}-1)] < 0

## The Attempt at a Solution

I know that the answer is

**-inf<t<-1**and

**1<t<inf**, but how do I show the calculation to get that answer? When I tried, I narrowed it down to

**t<root-1**, but that's not possible (without complex numbers) and doesn't match the answer???