Hi, I wasn't too sure what category to put this in, so i'm sorry if pre-calculus is wrong.
I came across this question but can't seem to prove it:
If , show that:
(i) , for
(ii) ,
My workings:
(i)
After this I couldn't find a way to prove it and I just kept going round in circles.
(ii)
... from part one
Which I don't think's possible.
Any help here would be appreciated.
Thanks.