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let there be n numbers from 1 to n(1,2,3...)find the sum of first n terms(formula only)
let there be n numbers from 1 to n(1,2,3...) is llast term is nso the formula is [n(n+1)/2] this is the anser
If you wanna find sum of N terms from beginning then the formulae is ..{N(N+1)}/2Where N is the number of terms
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