# Math Help - How do I solve "sin x = .948"?

1. ## How do I solve "sin x = .948"?

I know that it involves an arc(trig function) but I don't exactly know which. I'm having a (very) rough year in trigonometry but was hoping someone could teach me how to solve that basic problem.

2. Originally Posted by iggy1110
I know that it involves an arc(trig function) but I don't exactly know which.
To undo a sine, try using the arc-sine.

3. Originally Posted by stapel
To undo a sine, try using the arc-sine.
Thank you very much =)

So would the equation I use to solve look like this:

x = arcsin .9486

4. Originally Posted by iggy1110
Thank you very much =)

So would the equation I use to solve look like this:

x = arcsin .9486
Yep, since sin(x) repeats itself the answer would be $x = arcsin(.9486) \pm 2k\pi$ where k is an integer and radians are used