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OpenStudy (anonymous):
Prove -sinƟ=sin(-Ɵ)
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OpenStudy (e.mccormick):
One way to do so is with the unit circle. |dw:1409870494410:dw| What would \(\sin\theta\) and \(\sin-\theta\) and be on that? Just in general.
OpenStudy (anonymous):
But how does it prove that -sinƟ is equal to sin (-Ɵ)?
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