Question

find the value of -1+1-2+2-3+3-4+4.......-25​

Answer 1

ANSWER is 0

Step-by-step explanation:

-1+1 will result 0 and this will continue till -25+25

So our answer becomes 0.

Answer 2

Answer:

Here - 1+1=0

But the last term is - 25

Means - 24+24 term gets 0

And - 25remains alone

Thus ans. - 25