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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