.
( ) () () ():
= /
, . 0,6.
() .
= /
= / ( + + )
. , , . 1.
( ) () . 1 (<1)
= /
= ( + + ) / , :
;
;
.
() () (). .
= /
() , .
= (-) / = /
= 0,5.( )
. , , .
( ) () . , . (≥0,7)
= ( + ) /
, . :
()
= -,
;
.
():
= + = +
():
= +
: .
()
|
|
|
= +
∆ =
∆ (+) (-) ;
∆ =
∆ (+) (-) ;
∆=
∆ (+) (-) .
. :
, :
∆≥0,
∆ ≥ 0,
∆ ≥ 0.
, .
, :
∆< 0,
∆ ≥ 0,
∆ ≥ 0
, .
, :
∆< 0,
∆ < 0,
∆ ≥ 0
, ..
, :
∆< 0,
∆ < 0,
∆ < 0.
, .
