MA 265 Midterm: EGR_265_Test1Fall 2014
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Egr 265, math tools for engineering problem solving. Also, state if they are linear or non-linear. (a) y . Y = xy2 (b) y + y . Xy = x (c) (xy ) = cos x (d) x y. Find the values of the constant c for which the function y = c equation x. Warning: this de is neither separable nor linear, thus we don"t have a method to systemat- ically nd its solutions. xy + 5y = x2y2. Find the explicit solution of the ivp y + 4xy2ex. Find the explicit solution of the ivp xy + 2y = 4x2, y(1) = 1. Problem 6 (15+5 points) (a) find an implicit solution of the ivp y = x + 1. On thanksgiving day you walk into the kitchen and see that your little brother has already taken the turkey out of the oven. On the meat thermometer you see that its current core temperature is 120 f.
