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, 0 x , 0
1
F (x ) 1 ( cos x ), 0 x ,
7.5 2
, 1 x .
x 0 ; x 1 .
3 3
, 0 x , 0
1
F (x ) 1 ( cos 2x ), 0 x ,
7.6 2 2
, 1 x 2 .
x ; x .
0 6 1 6
, 0 x ,
2
1
F (x ) 1 ( sin x ), x ,
7.7 2 2 2
, 1 x 2 .
x ; 0 x 3 .
0 1 4
, 0 x , 5
( x ) 5 2
F (x ) , 5 x , 0
7.8
, 1 25 x . 0
x 0 ; 4 x 1 . 1
64