In: Math
a.)Using disks or washers, find the volume of the solid obtained by rotating the region bounded by the curves y^2=x and x = 2y about the y-axis
b.) Find the volume of the solid that results when the region bounded by x=y^2 and x=2y+15 is revolved about the y-axis
c.) Find the length of the curve y=ln(x) ,1≤x≤sqrt(3)
d.)Consider the curve defined by the equation xy=5. Set up an integral to find the length of curve from x=a to x=b