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[" If "x=2cos t-cos2t,y=2sin t-sin2t," f...

[" If "x=2cos t-cos2t,y=2sin t-sin2t," find "(dy)/(dx)],[" (A) "tan((3t)/(2))],[" (B) "-tan((3t)/(2))],[" (C) "cot((3t)/(2))],[" (D) "-cot((3t)/(2))]

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