I'm practicing trig and so I'm working through some exercises. I'm having some trouble figuring this one out:
First I've rewritten as which equates to:
.
Then I'm kind of stuck, so I tried going the other way around:
=
Then I multiply the 1/1 in the denominator by cos a cos b, to make them equal, to get rid of the 1, then I rewrite it according to = which leaves me with a lot of sin and cos, but stuck as well. Some help would be nice
Yeah, well, you know how to solve this, so for you it's obvious to divide by cos(a)cos(b). For me it's not, now I can just go about trying some stuff till I find something that eventually would work, but that doesn't seem really productive or educated.