Exam-style question
Try this first
Which response best matches the A-level Maths objective on differentiate x^n for rational values of n and related…?.
- A.G2: choose the method that matches Differentiate x^n for rational values of n and related…
- B.Use any familiar GCSE calculation even if it ignores Differentiate x^n for rational values of n and related…
- C.Write only the final answer without showing the mathematical method
- D.Change the notation or restrictions to make the algebra look simpler
Model answer
What a good answer should say
- The correct answer is G2: choose the method that matches Differentiate x^n for rational values of n and related….
- This option is best because select the differentiation rule and interpret the derivative in context, then checks that the notation, restrictions and conclusion match the AQA A-level Mathematics objective.
This answer is tied to the objective: G2 Differentiate x^n for rational values of n and related constant multiples, sums and differences; differentiate e^(kx), a^(kx), sin kx, cos kx, tan kx and related sums, differences and constant multiples; understand and use the derivative of ln x..
Explanation
Why this works
Use the explanation to connect the worked answer back to G2 Differentiate x^n for rational values of n and related constant multiples, sums and differences; differentiate e^(kx), a^(kx), sin kx, cos kx, tan kx and related sums, differences and constant multiples; understand and use the derivative of ln x..
G2: choose the method that matches Differentiate x^n for rational values of n and related… is the correct option. It directly supports differentiate x^n for rational values of n and related… by requiring the student to select the differentiation rule and interpret the derivative in context.
The other options are weaker because they hide the reasoning, ignore restrictions, or use a generic calculation that may not fit the objective.
Maths method check
- Topic focus: Pure Mathematics.
- Question style: practice.
- Reasoning demand: recall.
- 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.