Question

Banyak bilangan asli antara 1 dan 400 uang habis dibagi 4

Answer 1

Verified answer

Kelas 8 Matematika
Bab Barisan dan Deret Bilangan

4, 8, 12, ...., 396

a = 4

b = U2 - U1
b = 8 - 4
b = 4

Un = 396
a + (n - 1) b = 396
4 + (n - 1) . 4 = 396
(n - 1) . 4 = 396 - 4
n - 1 = 392/4
n = 98 + 1
n = 99