Math Problem Statement
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Solution
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Math Problem Analysis
Mathematical Concepts
Vectors
Dot Product
Trigonometry
Formulas
Dot product: A · B = |A||B|cos(θ_AB)
B · C = |B||C|cos(θ_A + 20° - θ_B)
Theorems
Dot Product Formula
Suitable Grade Level
College-level Physics or Advanced High School
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