For this problem, consider the points P = (-2,8,9) and Q = (0, 4, 5). (a) Express the vector PQ as the difference between two vectors, and then compute its coordinates. (b) Compute a unit vector u in the same direction as PQ. (c) Compute a vector v of length 10 in the same direction as PQ.

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Inner Product Spaces
Section5.CR: Review Exercises
Problem 13CR
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For this problem, consider the points P = (-2,8,9) and Q = (0,4, 5).
(a) Express the vector PQ as the difference between two vectors, and
then compute its coordinates.
(b) Compute a unit vector u in the same direction as PQ.
(c) Compute a vector v of length 10 in the same direction as PQ.
(d) Compute a vector w of length 5 in the opposite direction as PQ.
Transcribed Image Text:For this problem, consider the points P = (-2,8,9) and Q = (0,4, 5). (a) Express the vector PQ as the difference between two vectors, and then compute its coordinates. (b) Compute a unit vector u in the same direction as PQ. (c) Compute a vector v of length 10 in the same direction as PQ. (d) Compute a vector w of length 5 in the opposite direction as PQ.
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