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, 0 x , 0
1 3
7.13 F (x ) , x 0 x , 8
2
, 1 x . 8
x ; 1 x . 1
0 1
, 0 x , 1
1 3
7.14 F (x ) ( x , ) 1 1 x , 3
8
, 1 x . 3
x ; 2 x . 4
0 1
, 0 x , 1
1 3
7.15 F (x ) x , 1 1 x , 9
2
, 1 x . 9
x ; 3 x 13 .
0 1
, 0 x , 1
1 3
7.16 F (x ) ( x , ) 1 1 x , 1
8
, 1 x . 1
x ; 0 x . 5
0 1
66