How do you find the volume of a solid that is enclosed by #y=3x^2# and y=2x+1 revolved about the x axis?
1 Answer
Nov 15, 2016
Explanation:
Let's find the intersections between the line and the parabola so that we have to solve
From the first Guldino theorem, the sought volume is given by the integral
that can be rewritten as
Rewrite after developing the binomial square
so that it gets
This solved gets