Question: (a) Show that any function of the form y = A sinh mx + B cosh mx satisfies the differential equation y = m2y. (b)

(a) Show that any function of the form y = A sinh mx + B cosh mx satisfies the differential equation y’’ = m2y.
(b) Find y = y(x) such that y’’ = 9y, y(0) = – 4, and y’(0) = 6.

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