Edexcel P4 2022 January — Question 6

Exam BoardEdexcel
ModuleP4 (Pure Mathematics 4)
Year2022
SessionJanuary
TopicTrig Proofs
  1. Three consecutive terms in a sequence of real numbers are given by
$$k , 1 + 2 k \text { and } 3 + 3 k$$ where \(k\) is a constant. Use proof by contradiction to show that this sequence is not a geometric sequence.
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