Use the following three identities to evaluate the given integrals. sin mx sin nx = 1/2 (cos
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Use the following three identities to evaluate the given integrals.
sin mx sin nx = 1/2 (cos ((m - n)x) - cos (m + n)x))
sin mx cos nx = 1/2 (sin ((m - n)x) + sin ((m + n)x))
cos mx cos nx = 1/2 (cos ((m - n)x) + cos ((m + n)x))
∫ cos x cos 2x dx
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Related Book For
Calculus Early Transcendentals
ISBN: 978-0321947345
2nd edition
Authors: William L. Briggs, Lyle Cochran, Bernard Gillett
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