Solve the questions below: a. Given that y = Ve2x. 6x + 7, show that - dy y dx? dy dx = 2e2x b. Given that y = e* In x, show that dy + (1 2x). dy X- dx? dx + (x- 1)y = 0 cos x c. Given that y = show that dy dy + 2-+ xy = 0 dx dx2 d. Given that y = Vcos x, show that dy 2y dx? dy 2 + y? = 0 %3D xp.