Math, asked by hrsandesh3, 9 months ago

sum of all first n term of an ap is
a.Sn=n (n+1)
b.Sn=n (n+1)/2
c.Sn=n/2(2a+(n-1)d
d.Sn=n^2

Answers

Answered by DilipRadhakrishnan

0

Answer:

(c)

Step-by-step explanation:

since it is a formula

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