2026 IGCSE Additional Mathematics May/June 0606/12 Q13

2026 IGCSE Additional Mathematics May/June 0606/12 Q13

4 marks

Show that, for all values of \(n\ge3\), \({}^{n+2}\mathrm{C}_3-{}^n\mathrm{C}_3=n^2\).[4]

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Answer:\(n^2\) (shown)

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