Math, asked by blvyash53, 11 months ago

without actuall addition find the sum of the following 1+3+5+7+9+11

Answers

Answered by kamalchahalchahal612

0

Answer:

ans is 29

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Answered by 217him217

1

Answer:

total terms n = 6 , a=1,l=11

=> Sn = n(a+l)/2

=> Sn = 6(1+11)/2

=> Sn = 6*12/2

=> Sn = 36

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