Question

what is the answer for
1+2-3+4-5+...​

Answer 1

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hello...!

1,2,3,4,5,....

by AP series

» sñ= n/2[2a+(n-1)d]

» sñ = n/2[2(1)+(n-1)1]

» sñ = n/2[2+(n-1)]

» sñ = n/2[1-n]

replace number of terms at n's place.✔

...#thankà❤