You've done it right but you've just made a small error. I'll right it out in full for you:
Left side
The above way of setting it out might allow you to see your error. Both should cancel each other out
Hey Guys and Girls!
I need some help answering one of my homework questions. This is from Grade 12u Advanced Functions.
I've done other examples, but this one seems to confuse me.
Prove the identity:
sinxcosxtanx = 1 - cos^2x
This is what I've done so far:
Left Side:
=sinxcosx(sinx/cosx)
and from here I don't know what to do, but my guess would be:
= sin^2x / cos^2x
Which means both sides are not equal?
Right Side:
1 - cos^2x
=sin^2x
Thanks for any help you can give me!