2s2 + 5s - 6 s3 - 3s2 – 13s + 15 69 3 69 A. f(t) = " e5t -1et C. f(t): est +1et 3 -3t 32 -3t 32 16 32 32 16 3 5t 3 5t - 1 est + et 69 69 -3t e -3t B. f(t) = D. f(t) = %3D e 32 32 16 32 16 32

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