Use Definition 7.1.1. DEFINITION 7.1.1 Laplace Transform Let f be a function defined for t20. Then the integral 2{f(t)} = L{f(t)} = = *DO e-stf(t) dt is said to be the Laplace transform of f, provided that the integral converges. Find {f(t)}. (Write your answer as a function of s.) f(t) = t cos t (s > 0)

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