Question

Simplify (pi * R^3 + ( - pi * (R-r)^3)) /(Pi* R^2 + -pi * (R-r)^2)

Answer 1

We have this
\[\frac{\pi * R^3 + ( -\pi * (R-r)^3)} {\pi* R^2 + -\pi * (R-r)^2}\]
let's take the \(\pi\) common from numerator and denominator and cancel it
\[\frac{ R^3 - (R-r)^3} { R^2 - (R-r)^2}\]
Do you get this?

Answer 2

yea