OCR MEI Paper 1 2019 June — Question 8

Exam BoardOCR MEI
ModulePaper 1 (Paper 1)
Year2019
SessionJune
TopicArithmetic Sequences and Series
8 An arithmetic series has first term 9300 and 10th term 3900.
  1. Show that the 20th term of the series is negative.
  2. The sum of the first \(n\) terms is denoted by \(S\). Find the greatest value of \(S\) as \(n\) varies.
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