How do you compute the volume of a solid formed by revolving the given region about the lines?
the directions are:
compute the volume of the solid formed by revolving the given region about the line
region bounded by y=2x, y=2 and x=0 about (a) the y-axis; (b) x=1
It has to be solved with a definite integral
V=∫A(x)dx,a,b
im not 100% sure how to do this, please help