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AS Unit 1 Pure Mathematics A

Quick questions on Differentiation: first principles, tangents and stationary points - WJEC A-Level Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Differentiate y=3x4−2x+7y = 3x^4 - 2x + 7. [2 marks]
What is q2?
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Find the gradient of y=1xy = \dfrac{1}{x} at x=2x = 2. [3 marks]
What is q3?
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Find the range of values of xx for which y=x2−8xy = x^2 - 8x is decreasing. [3 marks]

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