Ngày tải lên :
29/07/2014, 07:20
... E
3
= (1, 1, 3) v`a x =(6, 9, 14 ).
1 98 Chu
.
o
.
ng 5. Khˆong gian Euclide R
n
a
4
=(0, 1, 2, 3). (DS.
2
3
, −
1
6
,
1
2
, 1)
3) a
1
= (1, 1, 1, 1) ; a
2
= (1, 1, 1, 1) ; a
3
= (1, 1, 1, 1) ;
a
4
= (1, ... E
1
,E
1
= 0 (cu
.
thˆe
’
l`a > 0) v`ı E
1
= E
1
= θ.Dod´o
λ = −
E
1
, E
2
E
1
,E
1
= −
(1, 2, 1) , (1, 1, 0)
1
2
+2
2
+1
2
= −
1
2
·
Do d
´o
E
2
= (1, 1, 0) −
1
2
(1, 2, 1) =
1
2
, ... t´ınh 2 21
Gia
’
su
.
’
B l`a ma trˆa
.
ncu
’
a L theo co
.
so
.
’
E
1
, E
2
, E
3
. Khi d´o
B = T
1
eE
AT
eE
=
1 −2 1
14 2
11 1
10 0
11 0
11 1
210
10 1
312
=
−4...