- #1
Jtechguy21
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Homework Statement
Write a triple integral in spherical coordinates that represents the volume of the part of the sphere
X^2+Y^2+Z^2=16 that lies in the first octant(where x,y, and z are coordinates are all greater than or equal to zero)
Homework Equations
So i know this is in rectangular form (x,y,z) trying to get it into (p,Θ,ø)
The Attempt at a Solution
X^2+y^2+z^2=16
p^2=16
p=4
To get Θ the formula is
arccos z/(square root of x^2+y^2+z^2)
when i solve for z I get z=√(16-r^2)
These are the limits i know
The limits for Dz are from z=0 to z=√(16-r^2)
The limits for Dr are from r=0 to r= pi/2
I do not know how to find the limits for DΘ (theta)
since the arccos √(16-r^2)/(square root of x^2+y^2+z^2)
should give me my theta. Θ
but i have no real values for x y and z. so i don't know how to approach this.
thank you
∫ ∫ ∫
rDzDrDΘ