Exam-style question
Try this first
Add the two-dimensional vectors (1, 2) and (3, 4).
- A.(4, 6)
- B.Not (4, 6)
- C.(4, 6) only sometimes
- D.(4, 6) with no working
Model answer
What a good answer should say
- The correct answer is (4, 6).
This answer is tied to the objective: J2 Calculate the magnitude and direction of a vector and convert between component form and magnitude/direction form..
Explanation
Why this works
Use the explanation to connect the worked answer back to J2 Calculate the magnitude and direction of a vector and convert between component form and magnitude/direction form..
Trace the calculation before choosing. The verified method for Vector magnitude and direction gives (4, 6); no later explanation is allowed to change that value.
Maths method check
- Topic focus: Pure Mathematics - vectors.
- Question style: practice.
- Reasoning demand: analysis.
- Check the operation, notation, units, and final answer form against the question before moving on.
Common mistake
No common mistake is linked to this question yet.