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LFM Pure
Proof by induction
Q8
SPS SPS FM 2026 November — Question 8
5 marks
Exam Board
SPS
Module
SPS FM (SPS FM)
Year
2026
Session
November
Marks
5
Topic
Proof by induction
8. Prove by induction that \(7 \times 9 ^ { n } - 15\) is divisible by 4 , for all integers \(n \geq 0\).
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Q4
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5
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