UPSC NDA II 2014 Mathematics Paper
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For the next two (02) items that follow:
LetS n denote the sum of first n terms of an AP and 3 S n = S 2 n
Let
[NDA II 2014]
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Question : 47 of 120
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What is S 3 n : S 2 n equal to ?
[NDA II 2014]
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