Math Help - Trigonometric Functions

1. Trigonometric Functions

Hi! I can't figure this out:

The point (pi/4,1) lies on the function in the form y= sin kx. Determine k.

So I did:

1= sin k (pi/4)

Is that right? If it is, how do I solve the equation?

2. Originally Posted by Dovud
Hi! I can't figure this out:

The point (pi/4,1) lies on the function in the form y= sin kx. Determine k.

So I did:

1= sin k (pi/4)

Is that right? If it is, how do I solve the equation?
Next step is to take the inverse sine of both sides.

3. I actually thought of that soon after posting this Thank you though!