15–18 Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) :(-8, 6), b=(/7,3) :(/3, 1), b= (0,5) 15. a = 17. a = j + k, b =i + 2j – 3k 18. a = i + 2j – 2k, b = 4i – 3k - -

15–18 Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) :(-8, 6), b=(/7,3) :(/3, 1), b= (0,5) 15. a = 17. a = j + k, b =i + 2j – 3k 18. a = i + 2j – 2k, b = 4i – 3k - -

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter8: Applications Of Trigonometry

Section8.3: Vectors

Problem 38E

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Question

18) Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.)

Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.

Expert Solution