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Which expression is equivalent to sin(3x) + sin x?A. 2cos(2x)sin x B. 2sin(2x)sin x C. -2sin(2x)cos x D. 2sin(2x)cos x E.
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Which set of parametric equations corresponds to this rectangular equation? y=2x-(x^2 / 10)A. x=4t, y=4t-(t^2 /10) B. x=2t,
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2. 767 views