Cosθi^ + Sinθj^ is a_________________?
AVector
BVector in the direction at angle θ with an x-axis
CThe unit vector in the direction at angle θ with an x-axis
DPosition Vector
Correct answer
C. The unit vector in the direction at angle θ with an x-axis
Explanation
The unit vector in the direction at angle θ with an x-axis is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.