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OpenStudy (anonymous):
Which expression is equivalent to 1 – cos^2 x?
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OpenStudy (anonymous):
A. csc2 x B. sec2x C. sin2 x D. -sec2 x E. -sin2 x
OpenStudy (anonymous):
\[\cos^2(x)+\sin^2(x)=1\] is where you start
OpenStudy (anonymous):
im confused
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