2.2
腅.3
1. () 腅.....3
2. 腅3
廅4
1. 充...........4
2. 充....5
2...6
2
1. .
(2; 3), (2; 7), (6; 1) | (3; 3), (4; 1), (2; 5) | ||
(5; 1), (6; 3), (4; 7) | (3; 5), (2; 2), (2; 4) | ||
(4; 5), (3; 2), (5; 4) | (2; 4), (5; 6), (3; 4) | ||
(7; 7), (1; 2), (5; 4) | (3; 7), (4; 1), (2; 5) | ||
(2; 3), (6; 3), (5; 4) | (3; 5), (5; 6), (3; 4) | ||
(3; 4), (4; 5), (8; 3) | (4; 3), (3; 2), (7; 2) |
:
1) ;
2) ;
3) ;
4) , ;
5) ( );
6) .
2. ABCD.
(1; 2; 1), (0; 0; 1), (1; 3; 3), D (2; 1; 1) | |
(7; 2; 4), (7; 1; 2), (3; 3; 1), D (4; 2; 1) | |
(1; 3; 6), (2; 2; 1), (1; 0; 1), D (4; 6; 3) | |
(2; 0; 4), (1; 7; 1), (4; 8; 4), D (1; 4; 6) | |
(1; 2; 0), (3; 0; 1), (5; 2; 3), D (3; 2; 1) | |
(1; 1; 2), (2; 1; 2), (2; 0; 4), D (2; 1; 2) | |
(4; 2; 5), (2; 3; 0), (10; 5; 8), D (5; 2; 4) | |
(2; 1; 1), (1; 3; 2), (2; 3; 1), D (1; 2; 3) | |
(7; 2; 4), (2; 2; 1), (4; 8; 4), D (3; 2; 1) | |
(1; 1; 2), (2; 3; 0), (10; 5; 8), D (2; 1; 1) | |
(1; 1; 2), (2; 0; 3), (3; 6; 3), D (1; 2; 7) | |
(4; 1; 3), (2; 1; 0), (0; 5; 1), D (2; 1; 1) |
:
1) AB;
2) ABC;
3) ABC BCD;
4) AB;
5) DK, D;
6) DK ABC;
7) AB BC;
8) AD ABC;
9) .
( 1)
()
|
|
|| (; ) (; ) (.1):
| AB | = . (1)
. λ, A (. 1), .. , C:
. (2)
, .. =1, C:
. (3)
F (, ) = 0 = f ().
:
+ + = 0.
(. 3):
= kx+ b. (4)
(. 2):
= . (5)
, ( 0; 0) ( ):
y 0 = k (x x 0). (6)
, ( 1; 1) ( 2; 2):
.2 . (7)
, :
. (8)
, : = k 1 x + b 1 = k 2 x + b 2.
:
k 1 = k 2.. (9)
:
. (10)
, .. k 2 , k 1 = 0 : k 2 = 0, k 1 .
, :
, (11)
. , .. k 2 , .
Ż ( 2)
: ,
A, B, C ( , ), D .
, :
. (12)
, :
. (13)
, ( ),
. (14)