Given the vectors a and b, a + b is:
A.
B.
C.
D.
Given that a = 5i + 7j and b = 4i − 5j, then a − 2b is:
3i - 17j.
-3i + 17j.
3i + 3j.
-3i - 3j.
The figure is a vector diagram where OA = a, OB = b and BE = 2OA, then AE is:
a - b.
-a + b.
a + b.
3a + b.
The magnitude of the vector -5i + 12j is:
√119.
13.
17.
7.
Given the vectors r and p. Evaluating r + p gives:
