Jika R = { 4, 8, 12, 16, ... , 100 }, maka n(R) = ......

R={4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100}
n(R)=25
maaf klo slh:)

R = {4, 8, 12, 16, ...., 100}
R = {4.1, 4.2, 4.3, 4.4, ,,,, , 4 . 25}
Maka n(R) = 25

Atau

4, 8, 12, 16, ... , 100
a = 4
b = 8 - 4 = 4
Un = a + (n - 1)b
100 = 4 + (n - 1)4
100 = 4 + 4n - 4
100 = 4n
n = 100/4 = 25