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mathman44
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Homework Statement
Homework Equations
I have that [tex]p(\theta)d\theta = \frac{1}{\pi}d\theta[/tex], this is definitely correct.
Also y=r*sin(theta) so dy=r*cos(theta)*d(theta).
Substituting d(theta) in above and simplifying, I have:
[tex] p(y)dy = \frac{1}{pi} \frac{dy}{\sqrt{r^2-y^2}} [/tex]
The problem is, integrating this from y=0 to y=r, I obtain 1/2, and not 1, as expected. I don't understand why this is... anyone?
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