Solve the problem using the vector form v = 
[(cos ?)i + (sin ?)j].A ship sails first S100°E for 90 nautical mi and then N20°W for 150 nautical mi. How far is the ship from the starting point and in what direction?
A. 210 mi, N38.2°E
B. 224 mi, N152°E
C. 224 mi, S152°W
D. 188 mi, N152°E
Answer: A
Mathematics
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