INTEGRAL OF TRIGONOMETRIC FUNCTION ∫ sin^2 (7x)dx Choices: A.) 1/2 x - 1/14 sin⁡14x + C B.) 1/2 [x -1/7 sin⁡14x ]+C C.) 1/2 [x -1/14 sin⁡14x ]+C D.) None of the choices

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