day Find y, of 2+ + 6y = 51 cos 3x. ... a.) y, = - cos 3x + 4 sin 3x b.) y, = cos 3x-4 sin 3x c.) y, =-4cos 3x + sin 3x d.) y, = 4cos 3x - sin 3x e.) cos 3x + 4 sin 3x d. a E)e b.

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