(Soalan 1 & 2 merujuk gambar 2 points rajah di bawah) SOALAN 1:
Apakah corak seterusnya bagi
gambar rajah di bawah *
O
Bulatan sepuluh biji
Bulatan sebelas biji
O
Bulatan dua belas biji
O
Bulatan dua belas biji dan berbentuk
segi tiga​

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236