Please help me with this question as soon as possible. Thank you so much!

1. Based off the video, Section 2.1, part 2: Find the general solutiontoy' + 5 sec?(x)y = 0. 2. Based off the video, Section 2.1, part 4: Find the general solutionto y' 3t2y = e) cos(4t). 3. Based off the video, Section 2.2, part 1: Find the implicit general solutiontoy' + 2zy = x%y> + y