Question: a)Use Laplace transforms to solve the IVP: y'' + 4y = 0, y(0) = 1, y'(0) = 1 b)Find the Laplace of e^(2t)cos(3t). c)Find the

a)Use Laplace transforms to solve the IVP:

y'' + 4y = 0, y(0) = 1, y'(0) = 1

b)Find the Laplace of e^(2t)cos(3t).

c)Find the Laplace of u(t ) cos(t ).

I need see how it's done. Thanks.

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