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2014-07-23 16:58:11 -0600 | answered a question | Mass of region between two graphs I agree. But I think there should be an r in there to account for the larger volume at greater radii like we said in cla ... |
2014-07-23 14:45:30 -0600 | answered a question | Spherical and cylindrical problems For starters, here's a groovy picture.
That image shows a sphere of radius 2 centered at the origin intersecting with ... |
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2014-07-21 11:01:34 -0600 | answered a question | Improper double integrals To talk about this we need to remember what makes an integral improper.
An integral is improper when it is bound by an ... |
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2014-07-20 18:16:13 -0600 | answered a question | Final exam review: Test 1 So as you can tell from this post I've had nothing to do today so I'm starting one of these for the questions I can reme ... |
2014-07-20 18:14:44 -0600 | asked a question | Final exam review: Test 1 Hey everyone, I think it's a good time for us to start reviewing things for the final. It is a short class after all and ... |
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2014-07-18 15:32:10 -0600 | answered a question | Post-test analysis I was bothered by that one on the test as well. I definitely got it wrong on the test but looking at it afterward I'm pr ... |
2014-07-18 13:17:55 -0600 | answered a question | Finding volume using integration First of all. Excellent question. Getting started on this took three students, four websites, a physics professor, and a ... |
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2014-07-17 15:43:34 -0600 | asked a question | Directional Derivative equal to 10 So with # 4 on the review sheet.
$$\nabla f=\langle y^{3},3xy^{2} \rangle$$
So at $(1,2)$ $\nabla f=\langle1,6 \rangle.$ ... |
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2014-07-17 14:26:37 -0600 | answered a question | Partial derivative Nice, next to yours I see the problem with mine now. I wrote out the first term of my product rule as $2x(y^{2}-x)$ inst ... |
2014-07-17 12:21:25 -0600 | asked a question | Partial derivative So with the function $$f(x,y)=\frac{x^{2}-y}{y^{2}-x}$$ I don't like the quotient rule because it seems like it makes wa ... |
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