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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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