1. Suppose that f : [0, 0) → R is continuous and f(x) # 0 for all x > 0. If we have (f(x))? = 2 f(t)dt for all x> 0, Show that f(x) = x for all x > 0.

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Q: 1. Solve by D operator method d?y – 2y+y = x²e 3x dy dx2 dx 2. Solve hy method

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