The differential equation y′+y = cos (4t) has the general solution y = (1/17) cos(4t)+(4/17) sin(4t)+Ce-t. Craft a function M-file for this solution as follows.

Plot a family of solutions for the differential equation with the following script.

We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.