2024 BTYSS P1 Q9

2024 BTYSS P1 Q9

Secondary 4
4 marks

The first four terms of a sequence are \(11\), \(8\), \(5\) and \(2\).

  1. Write down the next two terms in the sequence.[1]
  2. Find an expression for the \(n\)th term in the sequence.[1]
  3. Is \(-45\) a term of this sequence? Explain your answer.[2]

Solution:

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Answer:(a) \(-1,-4\) (b) \(14-3n\) (c) No; \(n=\dfrac{59}{3}\) is not a positive integer.

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