1+2+3+…..+98+99+100=tolong dijawab ya 30 menit lagi dikumpulkan lagian poin nya gede ko​

Rumus :

Sn = n/2 [ 2a + ( n – 1 ) (b) ]

Jawaban :

S100 = 100/2 [ (2×1) + ( 100 – 1 ) (1) ]

= 50 [ 2 + ( 99 × 1 ) ]

= 50 ( 2 + 99 )

= 50 ( 101 )

= 50 × 101

= 5.050

Penjelasan dengan langkah-langkah:

Jumlah 100 suku?

Sn = n/2 [2a + (n – 1)(b)]

S100 = 100/2 [2(1) + (100 – 1)(1)]

S100 = 50 [ 2 + 99(1)]

S100 = 50 [2 + 99)

S100 = 50 [101]

S100 = 5.050