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9.3 The Chain Rule

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Question 21

A curve has the equation 3x2+xy−2x+2y2=113x^2 + xy - 2x + 2y^2 = 113x2+xy−2x+2y2=11:

a.

Find an expression for dydx\displaystyle \frac{dy}{dx}dxdy​

[5]
b.

Find an equation for the tangent to the curve at the point P(1,2)P(1, 2)P(1,2)

[3]
Markscheme

9.3 The Chain Rule Questions

  1. A Level
  2. /Maths
  3. /9.3 The Chain Rule

58 exam-style questions on Edexcel A Level Maths 9.3 The Chain Rule. Each one has a worked solution and a mark scheme showing where the marks go.

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