Find the area of the regions enclosed by the curves below. do a integral expression and use your calculator to find the area. F(x)=- x^3/2+2x^2 g(x(=-x^2+4x

3) calculate the area of the shape enclosed by the flossing functions : y=1/x+3,y=x,y=x+3,y=1,x=3,x=0