Math, asked by ssidda582, 7 hours ago

The correct relation between Sn-1 is​

Answers

Answered by inapurammanoj1104
0

Answer:

Sn-1 where n is greater than 1 and is a natural number

Answered by lovingrathour
4

Answer. : Sn = n(a+ an) /2

Step-by-step explanation:

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