Math, asked by asonikumar12345, 4 months ago

sum of the final n term of an ap Sn is

Answers

Answered by mohanroopa2518

1

Answer:

Sn = n/2 ×[2a+(n-1)]

OR

Sn = n/2 [first term + last term]

OR

Sn = n [ middle term]

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