Find the integral of e^(x^2+y^2+z^2)^3/2 using spherical coordinates.

Expert Answers

An illustration of the letter 'A' in a speech bubbles

`int int int_E` `e^((x^2+y^2+z^2)^(3/2)) = int_0^(2pi) int_0^pi int_0^1 e^(rho^2)^(3/2) rho^2 sin phi d rho d phi d theta`

`2pi int_0^pi int_0^1 e^(rho^3) rho^2 sin phi d rho d phi`

`2pi int_0^1 (1/3)e^(rho^3) sin phi d phi`





`2pi int_0^pi (1/3) (e-1) sin d phi = (2pi/3)(e-1)(1 + 1)`

`2pi int_0^pi (1/3) (e-1) sin d phi = (4pi/3)(e-1)`

Hence, evaluating the  triple integral using spherical coordinates yields `int int int_E e^(x^2+y^2+z^2)^3/2 = (4pi/3)(e-1).`

Approved by eNotes Editorial Team

We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

  • 30,000+ book summaries
  • 20% study tools discount
  • Ad-free content
  • PDF downloads
  • 300,000+ answers
  • 5-star customer support
Start your 48-Hour Free Trial