Thread: Awkward Trig. Equation

Hello all. I have a trig problem here that I am not necessarily stuck on, but just wanted to confirm results with someone else.

Using the proof:



Where:




For:



What do you get?

Can be simplified further.

I made a mistake on .

I meant to write:



I fixed the initial post as well. Sorry about that.

Hello Deimos

With denominator rationalised, I get:

which checks out OK on my calculator.

I don't think that will simplify any further.

Grandad