## anonymous one year ago How do I convert f(x) = 4 sin(2x - π) + 3 into a cosine function? Help please!

1. anonymous

In the first part I was supposed to identify similarities and differences. But based on those I'm still unsure of how to do that.

2. freckles

have you thought about co-function identity

3. freckles

$\sin(u)=\cos(\frac{\pi}{2}-u)$

4. anonymous

Oh! Well that helps a lot lol

5. anonymous

I think I can solve it from here but if I need anymore help I'll tag you :D

6. freckles

k