-100-99-98-…-2-1-0+1+2+…+97+98+99 tlong d jwb yh

Materi Barisan

-100 – 99 – …. + 99
= -100 + (-99 + 99) + (-98 + 98) + …. + (-1 + 1)
= -100 + 0 + 0 + … + 0
= -100