Posted by Sabrina on Thursday, January 20, 2011 at 11:03am.
a)cos4xsin4xcot2x=1
b)1+sinx+cosx/1+sinxcosx=cot(x/2)
i tried to ask my teacher but she doesnt know please help me!

math trig identities  Sabrina, Thursday, January 20, 2011 at 12:13pm
Anyone help!!!!!
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