- #1
shyta
- 56
- 0
To find the volume generated by rotating an area bounded by 2 curves f(x) and g(x) around the x-axis
we use the formula
Int of lower and upper intersections pi( f(x)^2-g(x)^2 ) dx
or
Int of lower and upper intersections pi (f(x)-g(x))^2 dx
I understand that they are different but i am confused when to use the correct formula.
we use the formula
Int of lower and upper intersections pi( f(x)^2-g(x)^2 ) dx
or
Int of lower and upper intersections pi (f(x)-g(x))^2 dx
I understand that they are different but i am confused when to use the correct formula.