Given that a = 5i + 7j and b = 4i − 5j, then a − 2b is:
3i - 17j.
-3i + 17j.
3i + 3j.
-3i - 3j.
Given the vectors PQ and QR in the figure, then PR is:
a - b.
-a + b.
a + b.
-a - b.
The vector OP = i - j lies in the:
4th quadrant.
1st quadrant.
2nd quadrant.
3rd quadrant.
The magnitude of the vector -5i + 12j is:
√119.
13.
7.
17.
Given that OP = 3i − 5j and OQ= −2i + j, the vector QP is:
-5i + 6j.
i - 4j.
5i - 4j.
5i - 6j.
