Find the Magnitude and Direction Angle Of $\mathbf { v } = 6 \left( \cos 80 ^ { \circ } \mathbf { i } + \sin 80 ^ { \circ } \mathbf { j } \right)$

Find the magnitude and direction angle of $\mathbf { v } = 6 \left( \cos 80 ^ { \circ } \mathbf { i } + \sin 80 ^ { \circ } \mathbf { j } \right)$ .

A) ? $\| \mathbf { v } \| = \sqrt { 6 } ; \theta = 80 ^ { \circ }$
B) ? $\| \mathbf { v } \| = 6 ; \theta = 100 ^ { \circ }$
C) ? $\| \mathbf { v } \| = 6 ; \theta = 80 ^ { \circ }$
D) ? $\| \mathbf { v } \| = 6 ; \theta = 10 ^ { \circ }$
E) ? $\| \mathbf { v } \| = \sqrt { 6 } ; \theta = 100 ^ { \circ }$

Correct Answer:

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