Name:
Anonymous
2009-09-02 3:57
Why can't we post pictures in Science and Math?
Name:
Anonymous
2009-09-02 14:03
r = 2\\
0 < \theta < \frac{\pi}{6}\\
0 < \phi < 2\pi\\
A = \int r^2 \sin\theta \, \mathrm{d}\left (\theta, \phi\right )\\
= 4\int_0^{2\pi}\left [ \int_0^{\frac{\pi}{6}} \sin\theta\, \mathrm{d}\theta\right ]\,\mathrm{d}\phi\\
= 8\pi\cdot\left (-\frac{1}{2}\sqrt{3}+1)\\
\approx 3.37