Exam (elaborations)
OCR 2023 GCE FURTHER MATHEMATICS A Y535/01: ADDITIONAL PURE MATHEMATICS AS LEVEL QUESTION PAPER & MARK SCHEME (MERGED)
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(a) Express 205 in the form 7q+r for positive integers q and r, with 0 G r 1 7. [1] (b) Given that 7 | 205 # 8666 , use the result of part (a) to justify that 7 |8666. [2] 2 For all positive integers n, the terms of the sequence un are given by the formula un = 3n 2 + 3n + 7 (mod 10). (a) Sho...
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