Volumes by Cylindrical Shells (1 Viewer)

[tacogym27101990]

its appears to me that its just a substitution
but they had to make it confusing by using y' instead of something like u

 

[vds700]

its appears to me that its just a substitution
but they had to make it confusing by using y' instead of something like u

thanks man, i did it using u instead of y', much simpler. It's stupid though, using y' when it means dy/dx.