Question: 3. (12 pts.) Find the general solution to each differential equation: . 2xy dy + (cos(x) + y2) dx = 0. . y - 4y'

3. (12 pts.) Find the general solution to each differential equation: . 2xy dy + (cos(x) + y2) dx = 0. . y" - 4y' + 13y = e2t sec(3t). . thy" - t(t + 2)y' + (t+ 2)y =0, given that y(t) = t is a solution

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