Question 22 — IGCSE 0580 May/June 2023 Paper 23
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Algebra · Sequences. Worth 5 marks.
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Question text
22 These are the first four terms of a sequence.
2.75 6 11.25 20
1
The nth term of this sequence is n3+an2+bn.
4
Calculate the value of a and the value of b.
a = ................................................
b = ................................................ [5]
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11
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