For each pair of vectors, use the inner product to determine whether that pair forms an acute angle, a right angle, or an obtuse angle. 7 1 (a) and 3 5 1 -4 (b) and 5 -4 -4 2 (c) and -4 -2 2 7 (d) and -2 3 When you are done, sketch the vectors carefully in the coordinate plane and check whether your answers to (a), (b), (c) and (d) look correct.
For each pair of vectors, use the inner product to determine whether that pair forms an acute angle, a right angle, or an obtuse angle. 7 1 (a) and 3 5 1 -4 (b) and 5 -4 -4 2 (c) and -4 -2 2 7 (d) and -2 3 When you are done, sketch the vectors carefully in the coordinate plane and check whether your answers to (a), (b), (c) and (d) look correct.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 14E
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Transcribed Image Text:For each pair of vectors, use the inner product to determine whether that pair forms an acute angle, a right angle, or an obtuse angle.
7
1
(a)
and
3
5
1
-4
(b)
and
5
-4
-4
2
(c)
and
-4
-2
2
7
(d)
and
-2
3
When you are done, sketch the vectors carefully in the coordinate plane and check whether your answers to (a), (b), (c) and (d) look correct.
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