Hey, I have been trying to figure out how to do these problems for quite some time, but I'm stuck. Help is very much appreciated.
Verify:
2- ((sin^2(x)/tan^2(x))= sin^2x-1
I really cannot figure this out.
Also, how do you solve this problem for theta? (this is one where I'm supposed to find the reference angle):
2sin2u+sin=0
and last thing, how do you find the cot(M+N)? Is it the same as the sum formula for cos but under 1?
Thank you so much!
Thanks! So after you get to this point, you solve for the reference angle and get:
Sin's ref <= 0 and cos's=180
so that means that u can = 0 degrees, 180 degrees or 360 degrees for sin, or 180 degrees for cos?
Hopefully that makes sense
Also:
I got that far, but it's at this point where I don't know what to do to make it = to sin^2(x)-1
at that point I get 2-cos^2(x), but I need it to be sin^2(x)-1