.
:
) C = 0, (2)
Ax + By = 0,
, , , x = 0, y = 0 .
) (2) B = 0,
Ax + = 0, .
y, Oy.
) (2) A = 0,
By + = 0, ;
x, Ox.
: - , , , .
) C = 0 A = 0 (2) By = 0, y = 0.
Ox.
) C = 0 B = 0 (2) Ax = 0 x = 0.
Oy. ,
,
a , , , .
, . , , ,
, (1) ,
,
, . , .
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21. |
( -, , . .), . , . , , . , (4.9) , , (4.9) : - (. 4.3). . (4.10) , . . (4.11) . (4.10) . . , (4.10) , (. 4.4, ; _ ).? , (4.10) , (. 4.4, ); , (4.10) , (. 4.4, ; ; (4.11)). (4.10) , (. 4.4, ; ). (4.10) ( ) . (4.10) (), ; , (, , ); , ( , ); , ( ); , ( < ). , . (4.10) , (4.12) - , . . . (4.13) - , , - , , ( ) . (4.13), (4.10) , . , , , (4.14) (4.14) (. (3.36)) (. 4.5). , . . (. 4.6), - , , (4-15) (4.15) , - rmoikOtm , . (. 4.7) : , , (4.16) (4.16) : - . . , , (4-17) (4.17) - ( , ). | ||||||||||||||||||||||||||
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