how do i simplify this:
and make it into
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can you explain more please.
how do i get cos^2?
i only got sin^2
From the given identity(in post #2) of course. use it to define sin^2 using cos^2. Come on, can't be more helpful
wow, i still can't get it, can you elaborate please
Originally Posted by ahmedb wow, i still can't get it, can you elaborate please Surely if then
Substitute this in place of .
You've asked very similar questions in about four different threads, surely you have learnt something by now...
yes i did
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