2025 IGCSE 0580 May/June P43 Q11

2025 IGCSE 0580 May/June P43 Q11

8 marks

The table shows three sequences.

1st term2nd term3rd term4th term5th term6th term\(n\)th term
Sequence A\(28\)\(22\)\(16\)\(10\)\(4\)
Sequence B\(\dfrac16\)\(\dfrac27\)\(\dfrac38\)\(\dfrac49\)\(\dfrac12\)
Sequence C\(\dfrac14\)\(\dfrac12\)\(1\)\(2\)\(4\)

Complete the table.[8]

Solution:

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Answer:A: \(-2,\ 34-6n\). B: \(\dfrac6{11},\ \dfrac n{n+5}\). C: \(8,\ 2^{n-3}\).

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