If prove that I tried this by simplifying the statement and finally i get then i can't simplify this prove.please help me!!!
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do you mean by the known pi or it is just another constant if it is the known pi then is undefind
Last edited by Amer; Jun 9th 2012 at 08:14 PM.
Originally Posted by srirahulan If is that secant supposed to be squared?
pi is a constant.i am really sorry to undefind it.
The question doesn't seem to make much sense anyway, doesn't ?
Well, IF you meant sec squared(you didn't get back to me, so idk), then maybe This looks like it's getting somewhere
it looks like the right side will reduce to -1, so you can substitute in that cos(A+pi)/cos(A-pi) = 1 from above
Last edited by Tclack; Jun 10th 2012 at 07:04 AM.
Reason: math error in image
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