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Mathematics, 28.04.2021 20:50 tristen2001

Write the expression as either the sine, cosine, or tangent of a single angle. cos(pi/5)cos(pi/7)+sin(pi/5)sin(pi/ 7)​

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Write the expression as either the sine, cosine, or tangent of a single angle. cos(pi/5)cos(pi/7)...
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