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Direction of vectors

You might need: Calculator

Problem

u=(4,2)
Find the direction angle of u.
Enter your answer as an angle in degrees between 0 and 360 rounded to the nearest hundredth.
θ=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi