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Use an identity to solve the equation on the interval (0,21). 3 sin 4x cos x-...


Use an identity to solve the equation on the interval (0,21). 3 sin 4x cos x- sin x cos 4x = -
Use an identity to solve the equation on the interval (0,21). 3 sin 4x cos x- sin x cos 4x = -
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solution a given that sinax cosa - SINXEOS 4x2 13 I we known that sinCA-B) = SINALOSB-SinB cosA sin 4x cosa-sinacos 4x = 13 a

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