Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 2
; 225°
B. 4; 45°
C. 2; 225°
D. 2
; 45°
Answer: D
Mathematics
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B. 
C. 
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Simplify the expression.(4x4)4
A. 4x8 B. 256x16 C. 4x16 D. 256x8
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= 
A. - 
B. - 
C. 
D. 
Mathematics