= , .. .
l1, l2, l3 , , . ij = aji, .
, l () = 0, - .
l l1, l2, l3 , .
. . .
:
=0
()() 8 = 0
l2 - 8l + 7 = 0
l1=7, l2 = 1.
,
; Þ 1 = 2 Þ - , l1=7
,
; Þ 2 1 =- 2 Þ 1 = 2 Þ - , l2 = 1
II. .
: .
, . , , , , . , . , . .
, , .
k , k. , k > 0, , k < 0.
, .
, , , , .
xyz, , x (), y (), z (), (x, y, z).
(1, 1, z1) (2 , 2, z2) . , (x, y, z)
1, 1, z1 - , 2, 2, z2 - , ,
; ;
λ == 1, (, ,z) ,
|
|
; ;
(1, 1), (2, y2), (3, 3) . . S = 0, .
. ї ,
(2, 4) (4, 10).
. 1 = - 2; 2 = - 4;
1= 4; = 10. =- 3; - = 7.
. , (2, - 3), (1, 1), (- 6, 5).
: ,
= 12
. S = 12 . .
.
, φ . .
= cosφ.
:
1. = ( )
2. = 0, ( ) - .
3.
4. ( )
:
: , = x1x2 +y1y2+z1z2.
.
, :
1) sinφ, φ - .
,
3) ^
:
1) , - .
2) = ;
3)()´ = ( )
: , :
=
, , ,
-
, : .
, .
, , , V .
, . , , , .
. , (1, 1, z1) (2 , 2, z2)
: , .
, :
, ,