did this help?I'm having a little bit of trouble verifying 2 trig identities. One of these may not even be an identity but I don't know which one since I'm having trouble with both.
The first one is:
sin(x+y)/sin(x-y) = 1-tanxtany/1+tanxtany
This is wrong. you should take reciprocal of the RHS to fix this one
And the second one is:
(sinx/1-cotx) - (cosx/tanx-1) = sinx+cosx
please bracket it properly so that i can give you a definitive answer.
I get to a certain point on both of these and can't figure out where to go from there, any help in how to verify these would be GREATLY appreciated!!