The equation is...
I substituted in place of and in place of .
I now have...
I tried cross multiplying to get the left side as one fraction, but it doesn't seem to get me anywhere. It seems like there is some concept i am missing because i end up getting stuck in the same place with a lot of different problems like this.
note: i am 25 years old and not in high school or college. I am learning trig. because I want to.
Thanks!