OCR C2 — Question 7

Exam BoardOCR
ModuleC2 (Core Mathematics 2)
TopicArithmetic Sequences and Series
  1. Show that the common difference is 5 .
  2. Find the 12th term. \end{enumerate} Another arithmetic sequence has first term -12 and common difference 7 .
    Given that the sums of the first \(n\) terms of these two sequences are equal,
  3. find the value of \(n\).
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