Math, asked by Heenapruthi6683, 1 year ago

Sn denotes the sum of AP whose common difference is d show that d= Sn-2Sn-1+Sn-2

Answers

Answered by jalanishita123

65

Answer:

Here,

Tn = Sn-Sn-1

Tn-1 = Sn-1-Sn-2

Sn-2(Sn-1)+Sn-2 = Sn-Sn-1-Sn-1+Sn-2

= (Sn-Sn-1)-(Sn-1-Sn-2)

= Tn-Tn-1

= d

Answered by ajaysahuas63p415oh

58

answer of above question is following

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