2021 SAJC P1 Q5 (a)

2021 SAJC P1 Q5 (a)

3 marks
Prelims

The sum of the first \(n\) terms of a sequence is denoted by \({{S}_{n}}\). Given that \({{S}_{n}}={{e}^{n}}-1\), prove that the sequence is a geometric progression.[3]

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