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9.8 Implicit Differentiation

9.8 Implicit Differentiation

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Question 12

A curve has the equation 2x2+5xy+2y2=92x^2 + 5xy + 2y^2 = 92x2+5xy+2y2=9:

a.

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

[5]
b.

Find an equation for the normal to the curve at the point (1,1)(1, 1)(1,1)

[3]
Markscheme

9.8 Implicit Differentiation Questions

  1. A Level
  2. /Maths
  3. /9.8 Implicit Differentiation

47 exam-style questions on Edexcel A Level Maths 9.8 Implicit Differentiation. Each one has a worked solution and a mark scheme showing where the marks go.

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