OCR C2 2006 January — Question 1

Exam BoardOCR
ModuleC2 (Core Mathematics 2)
Year2006
SessionJanuary
TopicArithmetic Sequences and Series
1 The 20th term of an arithmetic progression is 10 and the 50th term is 70 .
  1. Find the first term and the common difference.
  2. Show that the sum of the first 29 terms is zero.
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