1. : | 1. . 2. . 3. . |
2. :
2.1. .
2.2. .
2.3. .
.
( solen eidos - ) , . , .
. 1. . |
, . . .1 . , . , , , , , . 1 , . . . , , - .
(.2) :
, | (3.1) |
- , - ( , .. ), - - , (. 2 3).
. 2 | . 3 |
(.3), a1 (1) :
(3.2) |
, (),
, cos a1 = cos a3 =1,
.
. .
1. , . 4. : , , .
|
|
2. , , + = , . = , , = 0 / 2. | ||
. 4. . |