(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
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o ¨ ¢ ¡ £¢¥¤§¦©¨¡<br />
¡ ¨ § IR 4 <br />
<br />
F = {(a, b, c, d) ∈ IR 4 | c = 2a + 4b}<br />
G = (1, 1, 0, 0), (3, 3, 0, 5), (0, 0, 0, 1) <br />
¡ F 4<br />
IR<br />
F<br />
<br />
G<br />
dim F ∩ G dim(F + G)<br />
¡ ¨ A =<br />
<br />
4 1 2<br />
3 −4 0<br />
− 3<br />
2 4 4<br />
4 ¢ ¤ −4 A<br />
¡ ¢<br />
¤ <br />
<br />
A ¢¢¡ ¢<br />
¦<br />
153<br />
<br />
<br />
<br />
A<br />
<br />
¡ ¨ A = (2, 1, 0) B = (3, 2, 0) C = (2, 2, 1) ¨§ <br />
IR 3 <br />
¡ ¢ ¡ A B<br />
<br />
C<br />
¢ <br />
<br />
<br />
A<br />
<br />
B<br />
¢ ¢ ¢ <br />
<br />
<br />
B C<br />
<br />
A<br />
¨¥ ¨ § (a, b, c, d) ∈ F £¢ c = 2a + 4b<br />
F <br />
¢ <br />
<br />
F = {(a, b, 2a + 4b, d) | b, d ∈ IR}<br />
= {a(1, 0, 2, 0) + b(0, 1, 4, 0) + d(0, 0, 0, 1) | b, d ∈ IR}<br />
= 〈 (1, 0, 2, 0), (0, 1, 4, 0), (0, 0, 0, 1) 〉