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CAF123
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Homework Statement
Determine the value of [tex] \int_{0}^{1} \int_{0}^{\sqrt{1-x^2}} \int_{0}^{\sqrt{1-x^2-y^2}} \sqrt{x^2+ y^2 + z^2} dz dy dx [/tex]
The Attempt at a Solution
So in spherical polars, the integrand is simply ρ.
[itex] \sqrt{1- x^2- y^2} = z = ρ\cos\phi = \cos\phi [/itex] since we are on the unit sphere.
This gives one of the bounds
[itex] \sqrt{1-x^2} [/itex] is the upper half of the unit circle in the xy plane, so clearly θ goes from 0 to pi.
Since we consider z≥0, [itex] \phi [/itex] must go from 0 to pi/2.
Putting this together gives, [tex] \int_{0}^{\frac{π}{2}} \int_{0}^{π} \int_{0}^{cos\phi} ρ\,dρ\,dθ\,d\phi [/tex] have I ordered the integration process correctly?