Math, asked by facebookdivya1997, 9 months ago

1+3+5+7+9+11+13+15+.... what would the sum of first 15th terms of the series?

Answers

Answered by ashu9371

0

Answer:

answer is 345...........

Answered by Anonymous

0

Step-by-step explanation:

a=t1 =1

t2=3

d=2

n=15

Sn=?

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

=15/2 [2+14×2]

=15×28

=420

S15 = 420

420 is your answer

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