Math, asked by jaiho76, 1 year ago

what is the formula of sum of first n term of an ap whose first term is a and the last term is 1

Answers

Answered by Nick5869
2
Sum of first n terms of an ap is Sn =n/2( a + 1)
Answered by soumya8566
1
sum of first n terms=n/2(a+l) where l is last term of ap. if nth term is 1 then formula will be n/2(a+1)

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