1. Given: unit vectors i and )7 , placed tail to tail as shown, with an angle of 600between them. a) Draw the vector 2? + )7. b) Draw the vector 3 )7- 2)? and calculate its magnitude. 2. A pilot ies on a bearing of 160 at an airspeed of 250km/h. A 30km/h wind is blowing from a bearing of 030. Determine the resultant ground velocity and direction of the plane using either the triangle law of addition or vector components. 3. AABC has vertices at A (2,3), B(6,6) and C(-4, 11). a) Sketch and label each of the points on a graph. b) Calculate AB , AC and CB . C) Verify that AABC is a right triangle, using the dot product