Problem regarding the laplace transforms

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Using laplace transforms solve the following problems:

1. Find Y(t) if Y'''' + 2Y'' +Y = 3 + cos 2t with Y(0) = Y'(0) = Y''(0) = Y'''(0) please show the partial fraction expansion and how it was obtained..do not need to invert.

Replace cos2t with f(t) and show that solution.

Reference no: EM13957847

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