(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
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(a, b, c, d) = (a, b, b, 0)<br />
H = 〈(1, 0, 0, 3), (2, 0, 0, 1)〉<br />
= 〈(1, 0, 0, 3), (0, 0, 0, −5)〉<br />
= 〈(1, 0, 0, 3), (0, 0, 0, 1)〉<br />
= 〈(1, 0, 0, 0), (0, 0, 0, 1)〉<br />
(a, b, c, d) ∈ G ∩ H£¢ (a, b, c, d) ∈ G (a, b, c, d) ∈ H<br />
¢¡<br />
<br />
<br />
(a, b, c, d) = α(1, 0, 0, 0) + β(0, 0, 0, 1) = (α, 0, 0, β)<br />
G ∩ H = {(a, 0, 0, 0) | a ∈ IR} = 〈(1, 0, 0, 0)〉<br />
¡ ¨ IR 4 <br />
=⇒<br />
<br />
F = (a, b, c, d) ∈ IR 4 | a = 0 c = 2b <br />
G = 〈(1, −1, 0, 2), (−1, 2, 0, 1), (2, −3, 0, 1)〉<br />
<br />
dim F = dim G = 2.<br />
<br />
F ∩ G.<br />
b = c<br />
d = 0<br />
¨¥ ¨ (a, b, c, d) ∈ F£¢ a = 0 c = 2b<br />
F <br />
¢ <br />
<br />
F = {(0, b, 2b, d) | b, d ∈ IR}<br />
= {b(0, 1, 2, 0) + d(0, 0, 0, 1) | b, d ∈ IR}<br />
= 〈(0, 1, 2, 0), (0, 0, 0, 1)〉<br />
¢ <br />
§ ¢ ¡ <br />
0 1 2 0<br />
<br />
0 0 0 1<br />
((1, 1, 0, 0), (0, 0, 1, 0)) F dim F = 2<br />
<br />
b = 0<br />
¢ ¢ <br />
101