A Moving to another question will save this respons Question 10 -2t Find the first derivative of y ecos(2t) A. - 2e"cos(2t) -2t B. 2e cos(2t)- sin(2t) -2t C. 2e (cos(2t)- sin(2t)) -2t D. - 2e (cos(2t)+sin(2t)) O B

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