Options:
- A. 30
- B. 60
- C. 90
- D. 120
View Answer
B. 60
B. 60
C. 3
C. Both 1st and 3rd
D. The unit vector in the direction at angle ? with an x-axis
A. A.B/A
D. Infinite
B. B is a negative vector of A
D. Has magnitude -2
A. A.B = A^ B^
D. 120