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2d
revised Finding the flux integral?
explaining a bit more
2d
comment Finding the flux integral?
Have you ended up with this: $\int_0^2 (48(6-3x)+11(6-3x)^2-21x(6-3x)) dx$?
2d
comment Finding the flux integral?
I didn't calculate. But why with $\pi$?
2d
comment Finding the flux integral?
@Ayoshna It seems to be okay.
2d
answered Finding the flux integral?
Apr
21
revised Oblique Pyramids
Correcting restrictions
Apr
21
comment Oblique Pyramids
@Blue you're right, $e$ and $f$ just can't be simultaneously zero in an oblique pyramid. I'll fix that. Thanks.
Apr
21
revised Oblique Pyramids
Missing term
Apr
20
revised Oblique Pyramids
Fixed grammar
Apr
20
comment Evaluating $\int_1^2 \int_{-\sqrt{4-x^2}}^{\sqrt{4-x^2}}(x)\:\mathrm{d}y\:\mathrm{d}x$ using polar coordinates?
@FernandoMartinez And the second antiderivative is $\frac{8}{3} \sin(\theta) - \frac{1}{3} \tan (\theta)$.
Apr
20
comment Evaluating $\int_1^2 \int_{-\sqrt{4-x^2}}^{\sqrt{4-x^2}}(x)\:\mathrm{d}y\:\mathrm{d}x$ using polar coordinates?
@FernandoMartinez The first integral is $\frac{8}{3} \cos(\theta) - \frac{1}{3} \sec ^2 (\theta)$.
Apr
20
answered Oblique Pyramids
Apr
20
comment Evaluating $\int_1^2 \int_{-\sqrt{4-x^2}}^{\sqrt{4-x^2}}(x)\:\mathrm{d}y\:\mathrm{d}x$ using polar coordinates?
@FernandoMartinez Yes and the comment of Steve Kass is very useful to realize that.
Apr
20
revised Evaluating $\int_1^2 \int_{-\sqrt{4-x^2}}^{\sqrt{4-x^2}}(x)\:\mathrm{d}y\:\mathrm{d}x$ using polar coordinates?
deleted 2 characters in body
Apr
19
revised Evaluating $\int_1^2 \int_{-\sqrt{4-x^2}}^{\sqrt{4-x^2}}(x)\:\mathrm{d}y\:\mathrm{d}x$ using polar coordinates?
added 15 characters in body
Apr
19
answered Evaluating $\int_1^2 \int_{-\sqrt{4-x^2}}^{\sqrt{4-x^2}}(x)\:\mathrm{d}y\:\mathrm{d}x$ using polar coordinates?
Apr
19
answered Volume of the pyramid…
Apr
18
answered To find the distance of a point from ellipse
Apr
12
comment Construct a line which intersects the interior two circles at chords of equal length.
That's it. You got it.
Apr
12
comment Construct a line which intersects the interior two circles at chords of equal length.
You make a circle tangent to that chord in the bigger circle and in the smaller too. Then you make a tangent line to these both circles.