What is the sum of all the whole numbers? I.e 1+2+3+..+infinity =?
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It is infinity that is never ending
If it was a product then it would be zero
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let the last number be ''n''
so the question is 1+2+3+4+5+.............+n
so apply arithmetic progression
a=1 d=1 last term-n
applying sum law
sum=(n/2){a+(n-1)d}
(1/2){1+nd-d)
solve it final answer will be
sum=n(n+1)/2
so the question is 1+2+3+4+5+.............+n
so apply arithmetic progression
a=1 d=1 last term-n
applying sum law
sum=(n/2){a+(n-1)d}
(1/2){1+nd-d)
solve it final answer will be
sum=n(n+1)/2
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