Math, asked by bykiiuz, 8 months ago

Find the sum of the first 12 terms of the series 1+4+7+10+

Answers

Answered by PragyaShrivastava

1

Answer:

22 is the answer of this sum

Answered by Anonymous

0

Answer Text

Solution :

Sn=n2[2a+(n−1)d]

=20[2+(39)3]=2380

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