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OpenStudy (anonymous):
tan theta*sin theta=sec theta - cos theta, its proofs, but idk how to do them
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OpenStudy (chaise):
well, tan(x)=sin(x)/cos(x) and sec(x)=1/cos(x). Does this help?
OpenStudy (anonymous):
so sin(x)/cos(x)*sin(x)=1/cos(x)*cos(x)?
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