1 ( ) 2 ( ).
. 6.2. -
1 2 . .
1 , ∆ 1 = 0. 2 , ∆ 2 = 0. , ∆ , , ∆ = 1 - 2 = 0. .
∆ . 1, . ∆ . , , 2 , ∆ 2 ∆ 1. , . , 1 2 , , , .
() W 4 , R 1. , , R 1.
S, 1 2. , , ∆ 2 = 0. , 2. R 2 .
, [1, 2]. ( ), , . . .
: |
-
1 ( ) 2 ( ). . 6.2. -
1 2 . . 1 , ∆ 1 = 0. 2 , ∆ 2 = 0. , ∆ , , ∆ = 1 - 2 = 0. . ∆ . 1, . ∆ . , , 2 , ∆ 2 ∆ 1. , . , 1 2 , , , . () W 4 , R 1. , , R 1. S, 1 2. , , ∆ 2 = 0. , 2. R 2 . , [1, 2]. ( ), , . . .
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