Edexcel CP1 Specimen — Question 2

Exam BoardEdexcel
ModuleCP1 (Core Pure 1)
SessionSpecimen
TopicProof by induction
  1. Prove by induction that for all positive integers \(n\),
$$f ( n ) = 2 ^ { 3 n + 1 } + 3 \left( 5 ^ { 2 n + 1 } \right)$$ is divisible by 17
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