:
y = kx + b ,
Ax + By + D = 0 ,
y - y = k (x - x ) , ,
, ,
,
A (x - x ) + B (y - y ) = 0 , .
= (A, B), , .
: .
: .
d M (x , y ) , Ax + By + C= 0 : d = .
, .
: (x - x ) + (y - y ) = R . M (x , y ) , R .
, , , , .
: .
. a > b, ( , , ); b > a, ( , , ).
, , , , .
: ( , , ) ( , , ).
. , ; .
, , , , .
F , p, p > 0.
:
y2 = 2 px ( );
y2 = -2 px ( );
x2 = 2 py ( );
x2 = -2 py ( ).
:
A (x x ) + B (y y ) + C (z z )= 0 , ,
Ax + By + Cz + D = 0 ,
, ,
.
:
- ,
- , ,
A x + B y + Cz + D = 0,
A x + B y + C z + D = 0 .
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, , Ax + By + Cz + D = 0, : sin = .
d M (x , y , z ) , Ax + By + Cz + D= 0 : d = .
3.