Solve: y" - 3y' - 4y = -8e¹ cos2t Complementary Solution: Yc = C₁eAt + C₂ B eEt Write the letter that corresponds to your answer. A = B = C = a. -2 b. 1 c. 0 d. 1. a. 0 b. 1 c. x d. sint a. 3 b. 4 c. 5 d. 6

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