identity
What identity means in Mathematics GCSE, as defined for Eduqas, Pearson Edexcel.
Definitions of identity
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Reference: Pearson Edexcel
A statement that holds for every value of the letter, written with the sign ≡ in place of an equals sign.
A statement that holds for every value, such as 3(x + 2) ≡ 3x + 6, which is true whatever x stands for.
An equation that is true for ALL values of the variables involved, often denoted by a triple equals sign $\equiv$ (e.g., $2(x+3) \equiv 2x + 6$).
Topics that use identity
- Algebra (Eduqas GCSE)
- Algebra - Notation, vocabulary and manipulation (Pearson Edexcel GCSE)
Related terms
Using identity in the exam
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