1-2+3-4+5-6+7-8+....+100
Matematika
fadel143
Pertanyaan
1-2+3-4+5-6+7-8+....+100
1 Jawaban
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1. Jawaban Anonyme
(1 - 2) + (3 - 4) + ... + (99 - 100) ---> n = 100
= (-1) × 100/2
= -50