1-2+3-4+5-6+7-8+...-100 jawab pakai cara trimakasih

Question

Matematika Diposting : 2017-07-21 Diupdate : 2023-11-26 ramadavin1306

Pertanyaan

1-2+3-4+5-6+7-8+...-100
jawab pakai cara trimakasih

Answer 1

Materi Barisan

Kelompokkan
(1-2)+(3-4)+(4-5)+....+(99-100)
= -1 × (100/2) = -1 × 50 = -50

Answer 2

(1-2)+(3-4)+.........+(99-100) = -1 + -1 + -1 +..... + -1
100/2 × - 1 = - 50