Winter 2022 MATH 201 Assignment 4 Due 11PM Friday 4 Feb 1. (10 points) Use the method of undetermined coefficients to find the solution of the initial value problem y" ty = 5x2c2x, y(0) = 1, y'(0) = 0. 2. (10 points) Use the method of undetermined coefficients to determine the general solution to y" ( t ) + y (t) = 2t cost. 3. Use the method of variation of parameters to find the general solutions of the following differ- ential equations. (a) (5 points) y" +y = tana secx, - 5 0