ECZ 2017 · GCE Paper 1 — Vectors In Two Dimensions
Given that a = 3-4, find |a|.
- A. 5
- B. 7
- C. 25
- D. 1
Verified working — step 1
The magnitude of a vector comes from Pythagoras on its components - and squaring kills the minus sign.The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question