. - y = , a, b, c, d .
, . , .
. -
= 0, d ¹ 0 ad = bc. a = d = 0, ¹ 0 - , , .
, -
y = (1)
¹ 0 ad bc ¹ 0 .
.
.
, ¢ ( ; y ¢ = , k = .
. .
¢ = , ¢ = (1; 1). , k = 1, x ¢ O ¢ y ¢ .
x ¢ O ¢ y ¢ (. 3).
. 2
6. :
:
1.
2. .
3. .
4.
. , ( ) , , , .
. 1) ( ) . . 2) , () + (), () (), () (), (): () . 3) , , 1) 2) .
, .
, , . , .
, ( ), ( ).
, . , , , , .
. , (), .. , () , .
|
|
. 3; (8 + 1) (14 + 15); .
(),
( ) = () (); ( ) = () (); (: ) = (): (). () = 0, (: ) . , 8: (4 4) (6 6):(3 3) .
. 2 1; 1 + 1; 2 1; 3 + 2. .