Find Volume Using Cylindrical Coordinates

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SUMMARY

The volume of the solid enclosed by the sphere defined by the equation r² + z² = a² and the cone z = r cot φ can be calculated using cylindrical coordinates. The correct volume integral is ∫∫∫ z r dr dθ, where the limits for z are from r cot φ to √(a² - r²), r ranges from 0 to a/csc φ, and θ varies from 0 to 2π. This approach effectively utilizes the properties of cylindrical coordinates to solve for the volume within the specified boundaries.

PREREQUISITES
  • Cylindrical coordinates
  • Understanding of triple integrals
  • Knowledge of spherical and conical equations
  • Basic calculus concepts
NEXT STEPS
  • Study the application of cylindrical coordinates in volume calculations
  • Learn about the derivation of volume integrals in spherical coordinates
  • Explore the properties of the cotangent function in trigonometric identities
  • Investigate advanced integration techniques for multi-variable calculus
USEFUL FOR

Students and professionals in mathematics, physics, or engineering who are working with volume calculations in three-dimensional space using cylindrical coordinates.

bodensee9
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Can someone explain to me how to find the volume of the following? I am asked to use cylindrical coordinates to find the volume of the solid enclosed by the sphere r^2+a^2 = a^2 and by the cone z = r cot φ where φ is some fixed angle between 0 and pi/2?

I would have thought that the volume would be ∫∫∫zrdrdθ, where z runs between r*cot φ and √(a^2-r^2), r runs between 0 to a/csc φ, and θ runs from 0 to 2pi. Thanks!
 
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Never mind, figured it out. Thanks.
 

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