Question

find the sum of first n natural numbers ​

Answer 1

Step-by-step explanation:

n =n(n+1)/2

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Answer 2

Well the formula for calculating the sum of n natural no.s is given by

1+2+3+4+5+6+7+8+9+10+...+n = n(n+1) / 2

But well some say and proofs exist that the sum of n natural no.s is -1/12 (RAMANUJAN SUMMATION)