, , . , . 3 . , . 2. 2 .
2 . . . , .
2 = 5 , = 2 , = 17
2 + = 5 + 2 = 7
(2 + ) = 17 7 = 10
( 1 3 ): 10 × 3 = 30
, 30 .
, , .
1, . 2 , . 2 = 16 ( 1 = 4 ). :
2 × 4 = 16 × 4 = 64
: 64 ÷ 30 = 2.
2- , 5- .
, 4 .
1 4 . 4 , 5- .
2 3 , 3 2- 3- , , , 7 , . . , . 3 . , 2 . .
. .
, . . . , , 4- 1 . , ( 2 ), 2 . ( ), 2 3 . , , , .
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, .
( ), , . . , , . 3 4 , . 3 4 .