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OpenStudy (anonymous):
Picture attached (Trig things)
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OpenStudy (anonymous):
OpenStudy (anonymous):
I got 2sinxcosx + 1
OpenStudy (anonymous):
@uri
OpenStudy (anonymous):
sin2x + cos2x 2sinxcosx + cosxcosx + sinxsinx 2sinxcosx + cos^2x + sin^2x 2sinxcosx + 1 Not an answer choice...
OpenStudy (anonymous):
I mean sin2x - cos2x 2sinxcosx -( cosxcosx + sinxsinx ) 2sinxcosx -( cos^2x + sin^2x ) 2sinxcosx - 1
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hartnn (hartnn):
` \(\Large \cos2x = \cos^2x -\sin^2 x =1-2\sin^2x \)
OpenStudy (anonymous):
sin2x - cos2x 2sinxcosx - 1 + 2sin^2(x)
OpenStudy (anonymous):
Thanks!
hartnn (hartnn):
welcome ^_^
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