Question

Tentukan hasil penjumlahan 1+2+3+4+...+24+25 pakai cara y menggunakan metode gauss

Answer 1

Verified answer

1+25 = 26
2+24= 26
........

banyaknya pasangan bilangan = 25/2

maka hasilnya adakah
(1+25) x 25/2 = 26x25/2 = 325

semoga membantu:)
maaf jikalau salah

Answer 2

Metode GAUSS

A = 1 + 2 + 3 + ... + 25
A = 25 + 24 + 23 + .... + 1
------------------------------------ ( + )
2A = 26 + 26 + ... + 26
2A = 26 × 25
A = 26 × 25/2
A = 13 × 25
A = 325


1 + 2 + 3 + ... + 25 = 325