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OpenStudy (anonymous):
NEED HELP Write the expression as the sine, cosine, or tangent of a single angle. Expression: sin(pi/3)cos(pi/2)+cos(pi/3)sin(pi/2) pretty sure you use the formula: sin(A+B) but not positive. Any input?
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OpenStudy (alekos):
what does cos(pi/2) equal?
OpenStudy (alekos):
lost interest already?
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