Answer: In 1 and 2 verify that y1 and y2 are solutions of
Chapter 4, Problem 4.1.412(choose chapter or problem)
In 1 and 2 verify that y1 and y2 are solutions of the given differential equation but that y c1y1 c2 y2 is, in general, not a solution.(y )2 y2; y1 ex, y2 cos x
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