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For question b use the laplace table (b ) Find the Laplace transform of 2-tcosh 2t. (4 marks) (c) A model of the forced oscillations

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For question b use the laplace table

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(b ) Find the Laplace transform of 2-tcosh 2t. (4 marks) (c) A model of the forced oscillations of a suspension system is expressed in the d'y form of dy dt 2 + 6y = 10cost . Solve the differential equation if y = 0 dt and dy -= 0 when t = 0 . Hence describe the behavior of y as t approaches dt infinity

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