Asked by Jess
Can someone please tell me how to derive V=4/3pi(r)^3 to get x^2+y^2=r^2?
Answers
Answered by
Reiny
You can derive the formula for the volume of a sphere by rotating the circle
x^2 + y^2 = r^2 about the x axis by taking the
integral of pi(r^2 - x^2)dx from -r to +r
Is this what you meant?
x^2 + y^2 = r^2 about the x axis by taking the
integral of pi(r^2 - x^2)dx from -r to +r
Is this what you meant?
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