Determine the area above the X axis and below the curves belowf(x)= 3x^2+2 between x = -1 and x=2f(x)= e^3x between x = 1 and x= 4Determine area below x axis below the curves from x = 1 to x= 3 y= x^2-9y= 1/3sin(1/2x) from x = 2pi to x= 3pi