Given the vectors r and p. Evaluating r + p gives:
A.
B.
C.
D.
Given that the matrix below is equal to 0, then x is:
2.
-2.
-6.
8.
Given that the vectors 6i + 15j and xi − 5j are parallel, the value of x is:
3.
-3.
Given the vector OP = -4i + 3j, |OP| is:
7.
25.
5.
1.
The direction of the vector -3i -3j is:
45°.
315°.
135°.
225°.
