Find the Angle θ Between the Vectors $\begin{array} { l } \mathbf { u } = - 7 \mathbf { i } - 8 \mathbf { j } \\\mathbf { v } = - 9 \mathbf { i } + 2 \mathbf { j }\end{array}$

question 48

Multiple Choice

Find the angle θ between the vectors. ​​ $\begin{array} { l } \mathbf { u } = - 7 \mathbf { i } - 8 \mathbf { j } \\\mathbf { v } = - 9 \mathbf { i } + 2 \mathbf { j }\end{array}$ ​
(Round the answer to 2 decimal places. )
​

• A) \(71.34 ^ { \circ }\)
• B) \(66.34 ^ { \circ }\)
• C) \(61.34 ^ { \circ }\)
• D) \(81.34 ^ { \circ }\)
• E) \(76.34 ^ { \circ }\)

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