8. Consider the vector v = (-7,8) A. What is the angle between = (-7,8) and the positive x-axis? y Part I: Use the formula ₁/2=₁|₂|cose to find the cosine of the angle between the two vectors (-7,8) and (1,0). Cos=-0.6585 Part II: Use the cosine of the angle to find the actual angle between the two vectors.
8. Consider the vector v = (-7,8) A. What is the angle between = (-7,8) and the positive x-axis? y Part I: Use the formula ₁/2=₁|₂|cose to find the cosine of the angle between the two vectors (-7,8) and (1,0). Cos=-0.6585 Part II: Use the cosine of the angle to find the actual angle between the two vectors.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.3: Vectors
Problem 34E
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