1. Find the angle between two vectors a and b with magnitudes √3 and 2, respectively having a b = √6.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 16E
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1. Find the angle between two vectors à and with magnitudes √3 and 2,
respectively having a b = √6.
2. Find the angle between the vectors î-2ĵ+3k and 3î -2ĵ+k
3. Find the projection of the vector î - on the vector î+ĵ.
4. Find the projection of the vector î+33 +7k on the vector 7î - ĵ+8k.
5. Show that each of the given three vectors is a unit vector:
—(2î +3ĵ+6k), ½ (3î −6ĵ+2k), ½ (6î +2ĵ−3k)
Also, show that they are mutually perpendicular to each other.
Transcribed Image Text:1. Find the angle between two vectors à and with magnitudes √3 and 2, respectively having a b = √6. 2. Find the angle between the vectors î-2ĵ+3k and 3î -2ĵ+k 3. Find the projection of the vector î - on the vector î+ĵ. 4. Find the projection of the vector î+33 +7k on the vector 7î - ĵ+8k. 5. Show that each of the given three vectors is a unit vector: —(2î +3ĵ+6k), ½ (3î −6ĵ+2k), ½ (6î +2ĵ−3k) Also, show that they are mutually perpendicular to each other.
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