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))

∫ sin 5x sin 7x dx

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Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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