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Solve the Problem u=⟨−3,5⟩\mathbf { u } = \langle - 3,5 \rangle

Question 160

Multiple Choice

Solve the problem.
-If u=⟨−3,5⟩\mathbf { u } = \langle - 3,5 \rangle and v=⟨4,9⟩\mathbf { v } = \langle 4,9 \rangle , evaluate (2u) ⋅v( 2 \mathbf { u } ) \cdot \mathbf { v } .


A) 102
B) 72
C) 62
D) 66

Correct Answer:

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