PEMBAHASAN SOAL LATIHAN SOAL 1

 "How many digits are there in the expression (111.111.111)2  What is the middle digit?"

Let's see if we can solve this problem by looking for a pattern:

1 digit       12            =  1                1 digit; middle digit = 1

2 digits    112            = 121            3 digits; middle digit = 2

3 digits    112             = 12321        5 digits; middle digit = 3

4 digits    11112         = 1234321    7 digits; middle digit = 4

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9 digits    1111111112    = 12345678987654321

there are 17 digits in the product; the middle digit is 9

do you guys find another way??? :)