Find the magnitude and direction angle (to the nearest tenth) for the given vector. Give the measure of the direction angle as an angle in [0, 360°).
A. 16; 30°
B. 16
; 60°
C. 32; 30°
D. 16; 150°
Answer: A
Mathematics
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B. 
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A. -1 ± 
B. -2 ± 2
C. -2 ± 
D. 2 + 
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