Math, asked by anjalineelam2005, 7 months ago

sum of first n terms in an A.P ,. Sn =

Answers

Answered by fellings6878

2

Answer:

n/2[2a+(n-1)d] is the answer

Answered by Anonymous

1

Answer:

Hey buddy your required answer is

Sn = n / 2 [ 2a + ( n - 1 ) d ]

or

Sn = n / 2 [ a + An ]

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