(30 pts) Using wxMaxima, define a function f such that f(x)=exsin(x) (i) Calculate f(1). (ii) Write dxdf+x1 without evaluating it. (iii) Evaluate part (ii) using ev command. (iv) Substitute the variable y for cos(x) in the output of part (iii) using a Maxima command. (20 pts) Using Maxima find the general solution of the following differential equation: dx2d2y+dxdy+y=xy(0)=1,y(2)=3