4. Given that A(1, 1, – 3), B(5, 4, – 1) and C(2, – 1, – 5) are three points in the 3-dimensional coordinate system with O as the origin. (a) D is a point on the line segment AB such that AD : DB = 3 : 4, find the coordinates of D. (b) Find AB and AC. (c) Find AB · AC.
4. Given that A(1, 1, – 3), B(5, 4, – 1) and C(2, – 1, – 5) are three points in the 3-dimensional coordinate system with O as the origin. (a) D is a point on the line segment AB such that AD : DB = 3 : 4, find the coordinates of D. (b) Find AB and AC. (c) Find AB · AC.
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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