25.12.2012 Views

Kompendium til lineær Algebra - bennike.org

Kompendium til lineær Algebra - bennike.org

Kompendium til lineær Algebra - bennike.org

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

[ 1 − [ 3 = 0⎫<br />

⎪<br />

0 = 0⎬<br />

0 = 0⎪<br />

⎭<br />

<strong>Kompendium</strong> <strong>til</strong> Lineæ r <strong>Algebra</strong><br />

Politstudiet, matematik, 1. årsprøve<br />

Af Erik Bennike<br />

V WWHV GHUIRU [� W� RJ [� W� InV<br />

⎛ [ 1 ⎞ ⎛W<br />

2 ⎞ ⎛0<br />

⎞ ⎛1<br />

⎞<br />

⎜ ⎟ ⎜ ⎟ ⎜ ⎟ ⎜ ⎟<br />

[ = ⎜ [ 2 ⎟ = ⎜ W1<br />

⎟ = W1<br />

⋅⎜<br />

1⎟<br />

+ W2<br />

⋅⎜<br />

0⎟,<br />

W1,<br />

W2<br />

∈R<br />

⎜ ⎟ ⎜ ⎟ ⎜ ⎟ ⎜ ⎟<br />

⎝ [ 3 ⎠ ⎝W<br />

2 ⎠ ⎝0<br />

⎠ ⎝1<br />

⎠<br />

+HUDI VHV DW ( 9� )<br />

⎧⎛0<br />

⎞ ⎛1<br />

⎞⎫<br />

⎪⎜<br />

⎟ ⎜ ⎟⎪<br />

6 = VSDQ⎨⎜1<br />

⎟,<br />

⎜0<br />

⎟⎬<br />

⎪⎜<br />

⎟ ⎜ ⎟⎪<br />

⎩⎝0<br />

⎠ ⎝1<br />

⎠⎭<br />

%HVWHP VDPWOLJH HJHQY UGLHUV HJHQY UGLPXOWLSOLFLWHW<br />

-I VS¡UJVPnO VHV VWUDNV DW HP� ± RJ HP�<br />

$OWHUQDWLYW<br />

'D $ HU V\PPHWULVN HU HP� UP� RJ GLVVH HU IXQGHW L VS¡UJVPnO WLO DW Y UH GH<br />

RYHQVWnHQGH MI L ¡YULJW NRPSHQGLHW V<br />

%HVWHP IRU VDPWOLJH HJHQY UGLHU HQ EDVLV IRU GH WLOK¡UHQGH HJHQUXP<br />

⎛⎛<br />

−1⎞⎞<br />

⎜⎜<br />

⎟⎟<br />

(Q EDVLV IRU 9� ± HU nEHQEDUW V WWHW ⎜⎜<br />

0 ⎟⎟<br />

⎜⎜<br />

⎟⎟<br />

⎝⎝<br />

1 ⎠⎠<br />

⎛⎛<br />

0⎞<br />

⎛1<br />

⎞⎞<br />

⎜⎜<br />

⎟ ⎜ ⎟⎟<br />

9� (Q EDVLV IRU HU nEHQEDUW V WWHW ⎜⎜<br />

1⎟,<br />

⎜0<br />

⎟⎟<br />

⎜⎜<br />

⎟ ⎜ ⎟⎟<br />

⎝⎝<br />

0⎠<br />

⎝1<br />

⎠⎠<br />

%HVWHP GLPHQVLRQHQ DI GH L VS¡UJVPnO IXQGQH XQGHUUXP RJ XQGHUV¡J<br />

9� 9�<br />

9� 9�<br />

L 8QGHUV¡J RP ± A<br />

LL 8QGHUV¡J RP ± R �<br />

9� 9� LLL 8QGHUV¡J RP ± † R �<br />

�<br />

�<br />

⎧⎛−<br />

1⎞⎫<br />

⎧⎛0<br />

⎞ ⎛1<br />

⎞⎫<br />

⎪⎜<br />

⎟⎪<br />

⎪⎜<br />

⎟ ⎜ ⎟⎪<br />

'D 9 ( − 2) = VSDQ⎨⎜<br />

0 ⎟⎬<br />

RJ 9 ( 6)<br />

= VSDQ⎨⎜1<br />

⎟,<br />

⎜0<br />

⎟⎬<br />

VHV VWUDNV DW<br />

⎪⎜<br />

⎟⎪<br />

⎪⎜<br />

⎟ ⎜ ⎟⎪<br />

⎩⎝<br />

1 ⎠⎭<br />

⎩⎝0<br />

⎠ ⎝1<br />

⎠⎭<br />

- 42 -

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!