frederick
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Ah, I used to be able to do this easily but I really have forgot by now... Say you have a sphere with radius 10, you are drilling out a hole along the diameter with a radius of 3 inches... Find the volume of what's left of the sphere... So the way I thought to do it was just y = sqrt(100-x^2) in range y>3 rotated around x axis, but I really did forget how to write this... It was something like [math]pi \int^{10}_{3}(100-x^2)[/math]? Merged post follows: Consecutive posts mergedActually, sorry for wasting your time, that seems to be about right.
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It's alright though, it wasn't very interesting. Maybe it was too soon after confirming my email or something.
After evaporating, that yellow precipitate simply turned out to be sulfur, which I actually kind of like because I've never seen sulfur before...
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I don't get what happened, the one thread I've made has disappeared.
UC had seen it... maybe admin has deleted it?