Math, asked by JayTarpara5950, 9 months ago

Sum of series :1+2+3........ +n is

Answers

Answered by Zerinal

0

Answer:

n(n+1)/2

hope it helps you...

Answered by KumarDeepakNaik

0

Answer:

1+2+3+4.......+(n-1)+n = [n×(n-1)]/2

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