Mathematics GCSE
Triangular number
What Triangular number means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of Triangular number
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Reference: Pearson Edexcel
A total formed by adding consecutive positive integers beginning with 1.
Topics that use Triangular number
- Algebra - Sequences (Pearson Edexcel GCSE)
Related terms
- checking a term
- coefficient of n²
- Common ratio
- constant
- Fibonacci-type sequence
- First difference
- geometric progressions
- nth term expression
Using Triangular number in the exam
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