Hello, tsaephenix!
Prove that: .
Generally, we start with the more complicated side
. . and try to simplify it to match the other side.
The left side is: .
Then we have: .
Okay, this is all C3 (advanced maths, the English A-Level), and I need some help.
I need to prove that sin/cos + cos/sin = 2cosec2x
... any ideas?
I got this so far:
2cosec2x
2/sin2x
2/2sinxcosx (2's cancel out)
then from there, I think I'm stuck...
Help!
Luv me x x x