Question detail
reasoning check: add the vectors (5, 7) and (5, -4).
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Vectors
Question
- A. (10, 3)
- B. Not (10, 3)
- C. (10, 3) only sometimes
- D. (10, 3) with no working
Answer
The correct answer is (10, 3).
Explanation
Trace the calculation before choosing. The verified method for Vector operations and proofs gives (10, 3); no later explanation is allowed to change that value.
Common mistake
Vector operations and proofs common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Higher only] Use diagrammatic and column vector representations to construct geometric arguments and proofs..
Show the method first, then give the final answer in the required form. Apply this directly to Vector operations and proofs.
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