1. ## Inverse Function

Hey guys, here's the problem:

Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

I know how to do an inverse, I'm just having a very difficult time with this set of numbers.. Thank you so much!

2. ## Re: Inverse Function

For $y= \frac{1}{\sqrt{x^2-1}}$ swap y and x, then solve for y.

3. ## Re: Inverse Function

Brief tangent: am I the only person that found the wording of "verify the correctness of your answer" to be highly amusing?

4. ## Re: Inverse Function

Haha, yeah my teacher is pretty intense..
So, after swapping, I'm having a hard time doing the algebra..

5. ## Re: Inverse Function

At first glance, I'd consider multiplying through by the denominator, then squaring both sides.

6. ## Re: Inverse Function

Quacky's idea is good, What did you get AlexWilson94?

8. ## Re: Inverse Function

Looks good well done!

9. ## Re: Inverse Function

Sweet! Would you mind helping me out with another problem I posted, it's in this same section on Cramer's Rule!