What defines an identity compared to a standard equation?
It is true for one allowed value of the variable, often denoted by ≡\equiv≡.
It is true for all allowed values of the variable, often denoted by ≡\equiv≡.
It is true for all allowed values of the variable, often denoted by ===.
It is true for no allowed values of the variable, often denoted by ≡\equiv≡.
Flashcards for Edexcel A Level Maths Algebraic Methods, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 22 cards drawn from 1.1 Proof by Contradiction, 1.2 Algebraic Fractions, 1.3 Partial Fractions, 1.4 Repeated Factors, and 1.5 Algebraic Division, matched to the Edexcel A Level Maths (9MA0) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.