Graphs 9
2 marks · NormalDifferentiate with respect to . Give your answer in terms of .
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Also accept: 15 x^2 - 4 x; 15x^2 - 4x
Common mistakes: Differentiating constants as nonzero.; Incorrect power reduction.
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Marking points
M1 · 1 mark · Attempts to differentiate at least two terms correctly.
A1 · 1 mark · Gives correct answer: .
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