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Sketch (include the unit circle) and calculate the unit vector u = (cos B)i + {sin 8)] for the given direction angle. Choose the correct graph of vector u. C: A. C: B. C: C. C: D. Y Q Y Q Y Q Y Q x Q x Q x Q x Q [1' D\" D\" D\" u = i + j (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) Determine the direction angle 8 of the vector to the nearest degree. t=(3,7) B = {Round to the nearest degree as needed.) Find the magnitude and direction angle 9 of the vector. u = 3[{cos 183)i+ (sin 183}i] The magnitude is and the direction angle is Express the given vector in terms of its magnitude and direction. 5i+j 5i+j: ( i+ ll) (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) Solve the problem using the vector form V: |v|[{cos 8)i + (sin 9)]1. An airplane has an airspeed of 140 kmih. It is to make a flight in a direction of 70 while there is a 20-kmfh wind from 340. What will the airplane's actual heading be? 0 The actual heading is (Round to the nearest degree.)