Kindly solve for what is asked. Please make it legible as you can. It will be a big help for me to be able to understand. If possible, kindly also include a small explanation of how or what is the process. I already raised this question before, but I needed just to be sure. Hope you could help me. Thanks a lot!

Solve for what is asked. 1. Find the complete solution of the following differential equations: d 2 . a. airf = sm(3x) + cos(3x) 2 b. it\": = tamcscc2 x 2. A ball is thrown vertically Upward from the ground with an initial velocity of 20 ft/sec. (a) How long will the ball be going up, (b) how high will the ball go, and (c) how long will it take the ball to reach the ground? (d) With what speed will the ball strike the ground