factorisation
What factorisation means in Mathematics A-Level, as defined for AQA, WJEC.
Definitions of factorisation
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Reference: WJEC
Used instead of dividing across by cos θ when cos θ can equal zero, as in cos θ (sin θ − 1) = 0.
Reverses expansion, often by extracting a common factor or using known identities.
Topics that use factorisation
- B: Algebra and functions (AQA A-Level)
- Trigonometry (AS Unit 1: Pure Mathematics A) (WJEC A-Level)
Related terms
- area of a triangle
- Asymptote
- Asymptotes
- CAST diagram
- Completing the square
- Composite function
- Conjugate
- cosine rule
Using factorisation in the exam
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