(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
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¨¥ ¤£ ¡ 1 <br />
¨ <br />
det Bk<br />
<br />
1<br />
2<br />
= 0 <br />
−1<br />
0<br />
−1<br />
k<br />
1<br />
−1<br />
−1<br />
−k<br />
1<br />
0<br />
k<br />
k<br />
2<br />
<br />
<br />
<br />
=<br />
<br />
−1<br />
k<br />
1<br />
−1<br />
−k<br />
1<br />
<br />
k <br />
k <br />
2<br />
−<br />
<br />
<br />
<br />
<br />
2<br />
0<br />
−1<br />
−1<br />
k<br />
1<br />
k<br />
k<br />
2<br />
<br />
<br />
= k <br />
<br />
<br />
<br />
= k − <br />
<br />
<br />
−k 2 <br />
−1 −1 k<br />
1 −1 1<br />
1 1 2<br />
−1 1<br />
1 2<br />
1 1<br />
1 2<br />
<br />
<br />
<br />
<br />
− k <br />
<br />
<br />
<br />
+ <br />
<br />
<br />
+ <br />
1 1<br />
1 2<br />
0 1<br />
−1 1<br />
2 −1 k<br />
0 1 1<br />
−1 1 2<br />
<br />
<br />
+ k <br />
<br />
<br />
+ k <br />
= k (4 + 2k) − k (3 + k) = k 2 + k<br />
<br />
<br />
<br />
<br />
1 −1<br />
1 1<br />
0 1<br />
−1 1<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
det Bk = 2 ⇐⇒ k2 − k = 2 ⇐⇒ k2 − k − 2 = 0<br />
¡ ¨ H = ⎣ <br />
<br />
<br />
<br />
det H = <br />
<br />
<br />
⇐⇒ (k − 1)(k + 2) = 0 ⇐⇒ k = 1 k = −2<br />
⎡<br />
x a b 0 c<br />
0 y 0 0 d<br />
0 e z 0 f<br />
g h k u ℓ<br />
0 0 0 0 v<br />
x a b 0 c<br />
0 y 0 0 d<br />
0 e z 0 f<br />
g h k u ℓ<br />
0 0 0 0 v<br />
<br />
<br />
<br />
<br />
= v<br />
<br />
⎤<br />
⎦ det<br />
<br />
H<br />
¨¥ ¨ £ ¡ 5 ¡ 4 ¡ 1<br />
<br />
<br />
<br />
1<br />
= vuxyz<br />
x a b 0<br />
0 y 0 0<br />
0 e z 0<br />
g h k u<br />
¡ ¨ <br />
am + bp an + bq<br />
cm + dp cn + dq<br />
<br />
<br />
<br />
<br />
= vu<br />
<br />
x a b<br />
0 y 0<br />
0 e z<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
= vux<br />
<br />
<br />
= (mq − np) (ad −<br />
<br />
bc)<br />
¨¥ ¨ <br />
<br />
<br />
<br />
<br />
<br />
<br />
am + bp an + bq<br />
cm + dp cn + dq<br />
<br />
= <br />
am an<br />
cm + dp cn + dq<br />
<br />
+ <br />
bp bq<br />
cm + dp cn + dq<br />
<br />
<br />
<br />
y 0<br />
e z<br />
57