The figure is a vector diagram where OA = a, OB = b and BE = 2OA, then AE is:
a + b.
3a + b.
a - b.
-a + b.
Given the vectors a and b, a + b is:
A.
C.
B.
D.
Given the vector OP = i + j, the direction of this vector is:
30°.
45°.
60°.
90°.
Given that the vectors 6i + 15j and xi − 5j are parallel, the value of x is:
2.
-3.
3.
-2.
Given that OP = 3i − 5j and OQ= −2i + j, the vector QP is:
5i - 4j.
5i - 6j.
-5i + 6j.
i - 4j.
