Three dimensions: Lines and Planes, distance from a point to a line. Ex 12.5.21. Find the distance from (2,2,2) to x + y + z = -1.  The final anwser is 7/sqrt(3) but I'm not sure how you get there. Also, this is not part of a graded assignment, it is a textbook problem that I'm going over to help my studying. Thank you for your time and help.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Three dimensions: Lines and Planes, distance from a point to a line.

Ex 12.5.21. Find the distance from (2,2,2) to x + y + z = -1. 

The final anwser is 7/sqrt(3) but I'm not sure how you get there. Also, this is not part of a graded assignment, it is a textbook problem that I'm going over to help my studying. Thank you for your time and help. 

 

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