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Q15: Answers – Paper 5 – June 2018
Q15: Answers – Paper 5 – June 2018
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n is a positive integer.
Prove that 13n + 3 + (3n – 5)(2n + 3) is a multiple of 6.
n is a positive integer.
Prove that 13n + 3 + (3n – 5)(2n + 3) is a multiple of 6.
Question
15) n is a positive integer.
Prove that 13n + 3 + (3n – 5)(2n + 3) is a multiple of 6.
Prove that 13n + 3 + (3n – 5)(2n + 3) is a multiple of 6.
[4 marks]