Chapter 11.2, Problem 10E

8. Consider the vector v = (-7,8) A. What is the angle between = (-7,8) and the positive x-axis? = Part I: Use the formula ₁₂₁|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.

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Draw arrows representing: (8, 12), (-6, 4), (2, -12), (4, 10) 14 y 12+ 10+ 14 12 -1o $ 10 12 10 -10+ -12+ -14 Create a unit vector in the direction of (3, 8). Determine the angle between the positive x-axis and the vector (8,3).