Products of Powers of Sines and Cosines

7.2 1 7.2 Trigonometric Integrals Products of Powers of Sines and Cosines We wish to evaluate integrals of the form: ˆ sinm x cosn xdx where m and n are nonnegative integers. Recall the double angle formulas for the sine and cosine functions. sin2x =2sinx cosx cos2x =cos2x−sin2x =2cos2x−1 =1−2sin2x ................
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