The answer is below.
Work Step by Step
The equation can consider the x-direction, y-direction, and z-direction separately. Thus, while it is listed as one equation, it is really multiple equations.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.