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Jan19-10, 11:07 PM
P: 123
I was trying to derive the formula for the moment of inertia of a rectangular prism at its centre of mass. And ended up with this:


Due to the limitation of my knowledge in Calculus, I was stuck here. Can anyone help me solve these two integral:

[tex]\int arccos(\frac{a^{2}}{2r^{2}}-1)rdr[/tex]

[tex]\int (\frac{\pi}{2}-arccos\frac{b/2}{r}-arccos\frac{a/2}{r})rdr[/tex]
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