CBSE Class 10 Answered
sn denotes the sum of first n terms of an AP,
whose common difference is d, then
Sn-2Sn-1 + Sn-2 (n > 2) is equal to
A) 2d
B) -d
C) d
D) None of these
Explain solution please
Asked by Anubhavjain599 | 25 Aug, 2020, 10:16: PM
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Answered by Renu Varma | 26 Aug, 2020, 10:13: AM
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