cassmelnags
Dec 15, 2011, 05:21 PM
I have to get this answer by tomorrow or I get an F, HELP!
here's the problem:
1-(2sinxcosx cos2x)^2
---------------------- <- over
2sin2xcos2x
(yes, it is a fraction)
the answer is supposed to be one and I have to prove it
I've gotten this far:
2-4sin^2xcox^2x 8sinxcos^6x-4sinxcosx 4cos^4x-4cosx
----------------------------------------------------
2sin2xcos2x
the rest is lost on me
here's the problem:
1-(2sinxcosx cos2x)^2
---------------------- <- over
2sin2xcos2x
(yes, it is a fraction)
the answer is supposed to be one and I have to prove it
I've gotten this far:
2-4sin^2xcox^2x 8sinxcos^6x-4sinxcosx 4cos^4x-4cosx
----------------------------------------------------
2sin2xcos2x
the rest is lost on me