Question: Prove the formula, where and are positive integers. 65. sin mx cos nx dx = 0 o if m +n 66. sin mx

Prove the formula, where and are positive integers.


65.

65. " sin mx cos nx dx = 0 o if m +n 66. " sin mx sin nx dx T if m -n 0 if m n 67. (" cos mx cos nx dx T if m = n

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