# Arithmetic Sequences and Series

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Arithmetic Sequence : C1 Edexcel January 2011 Q6
An arithmetic sequence has first term a and common difference d. The sum of the first 10 terms of the sequence is 162.
(a) Show that 10 An arithmetic sequence has first term a and common difference d. The sum of the first 10 terms of the sequence is 162.
(a) Show that 10a + 45d = 162
Given also that the sixth term of the sequence is 17,
(b) write down a second equation in a and d,
(c) find the value of a and the value of d
Given also that the sixth term of the sequence is 17,
(b) write down a second equation in a and d,
(c) find the value of a and the value of d

A-level Edexcel C1 June 2008 Q7
The question is on arithmetic series.

Arithmetic Sequences and Series

Arithmetic series - (IB Math, GCSE, A level, AP)

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