1. 1 ( ) 20 2009 : : (5) 1 o. f . f x f ( x ) = 0 , f . 10. f x 0 ; 5 . , , , , .. z 1 , z 2 , z1z 2 = z1 z 2 2. f () x 0 A, f(x)f(x 0 ) xA 2 1 5

2. 2 x 1. lim =1 x 0x 2 . f . 2 . f [, ] f(x) 1, > 0 1 A. f ( x ) 1 x > 1, =e 8. =e, . f . 5. f (1, 0] [0, + ) 6. , (1, 0) (0, + ) , f () 1 f ( ) 1+=0 x 1x2 (1, 2) 6 3 5 4. 4 4 f [0, 2] 2 0 (t 2)f (t )dt = 0 xH( x ) = 0 t f (t )dt,x [0, 2], H( x )x x0 f ( t )dt + 3,x (0, 2] G(x) = 1 1 t2, x=06 lim t 0 t2. G [0, 2]. 5 . G (0, 2) H( x ) G( x ) = 2 , 0