The sum of n terms of a series is n(n+1) . Prove that it is an A.P. also find its 10th term. | ...

The sum of n terms of a series is n(n+1) . Prove that it is an A.P. also find its 10th term. | ...

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GCSE Maths - How to Write Expressions for the nth term of Arithmetic Sequences (2026/27 exams)
GCSE Maths - How to Write Expressions for the nth term of Arithmetic Sequences (2026/27 exams)
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