[2](4) For given differential equation y" +9y = 0 and its solution set {sin 3x, cos 3x}, a) verify each solution satisfi
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[2](4) For given differential equation y" +9y = 0 and its solution set {sin 3x, cos 3x}, a) verify each solution satisfi
solutions for linear independence, and c) if the set is linearly independent, then write the general solution of the differential equation.
[2](4) For given differential equation y" +9y = 0 and its solution set {sin 3x, cos 3x}, a) verify each solution satisfies the differential equation, b) test the set of