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OpenStudy (anonymous):
Simplify the expression: cot x sin x - sin (pi/2-x) + cos x cos x sin x 2 sin x 2 cos x
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OpenStudy (anonymous):
The expression can be re-writen as: (cosx/sinx) * sinx - sin(pi/2 - x) + cosx that is, cosx - cosx + cosx = cosx
OpenStudy (anonymous):
Thank you so much!!!!!!
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