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**1. Homework Statement**

Using the thechnique of multiple intergration prove that the volume of a sphere is 4/3 Pi r^3.

**2. Homework Equations**

**3. The Attempt at a Solution**

Equation for sphere is x^2 + y^2 + z^2 = r^2

Do I solve it using for example z = root(r^2 - x^2 - y^2)

Or is it best do solve it using angle such as y=r sin (Theta)

I hope this makes sence.

Cheers Ash