Correction to class Mon 13

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Correction to class Mon 13

For the volume of the region in the 1st octant bounded by the coordinate axes and the plane x/a + y/b + z/c=1, the correct answer is
abc/6. We somehow dropped a factor of 1/3.
This gives the correct value of x-bar = (1/24)/(1/6) = 1/4
Thanks. Tom Morley
Questions?
I got 1/6abc too, by integrating how the x-y triangles change with respect to z.

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