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Identities and choosing a method

Identities and choosing a method

Flowchart showing how to choose a partial fraction form by checking whether a fraction is proper, whether factors are distinct or repeated, and when to add a polynomial part

Algebraic methods often turn one expression into another form that is easier to use. A key idea is an identity, written with ≡\equiv≡, which is true for every allowed value of xxx, so you can compare coefficients or substitute convenient values.

Algebraic Methods Lesson

  1. A Level
  2. /Maths
  3. /Algebraic Methods

Step-by-step lessons on Edexcel A Level Maths Algebraic Methods, covering 1.1 Proof by Contradiction, 1.2 Algebraic Fractions, 1.3 Partial Fractions, 1.4 Repeated Factors, and 1.5 Algebraic Division. Each one builds up to exam-style questions. Build fluency with the core pure algebra and calculus toolkit early, since almost every mechanics and statistics topic on the course depends on it.

Lessons