The magnitudes 
, 
, and the angle ? between the vectors v and w are given. Round the requested magnitude or angle to the nearest tenth.
= 7, 
= 12, ? = 34°
Find the angle between v - w and v
A. 66.8°
B. 21.6°
C. 12.4°
D. 32.4°
Answer: A
Mathematics
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= x
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