i need the solution in matlab program please . thank you .

1- Plot the following functions (you will need to decide on appropriate ranges for x): a- y=1/x b- y=sin(x)cos(x), c- y = 2x2 - 3x + 1, Turn the grid on in all your plots, and remember to label axes and use a title. x + y 2- Write a function to evaluate f(x; y) for any two user specified values x and y. The function f(x; y) is defined as: x>0 and y > 0 x>0 and y 0 x2 + y2 x