-100-99-98-... - 2-1-0+1+2+...97+98+99
Matematika
farisya88
Pertanyaan
-100-99-98-... - 2-1-0+1+2+...97+98+99
1 Jawaban
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1. Jawaban yenipl90
-(101×100)/2 + (51×50)/2
=-(101×50) + (51×25)
= -5050 + 1285
= -3775