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lgebra Lineal;Stanley I. Grossman

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736 CAPÍTULO 6<br />

los valores característicos son<br />

45. ,<br />

;<br />

,<br />

con vectores característicos<br />

,<br />

.<br />

,<br />

;<br />

47.<br />

,<br />

los valores característicos son<br />

,<br />

,<br />

,<br />

,<br />

;<br />

;<br />

con vectores característicos<br />

⎛<br />

⎜<br />

⎜<br />

⎜<br />

⎜<br />

⎜<br />

⎝<br />

(.355477975436, 0.) (.656603950803, 0.) (1.37121250621E-2, -4.58555951253E-2) (1.37121250621E-2, 4.58555951253E-2) (8.46815933238E-2, 0.)<br />

(.508924413742, 0.) (-.567724652955, 0.) (-9.83665213641E-2, -.300432679563) (-9.83665213641E-2, .300432679563) (-.303086039306, 0.)<br />

(.99961452009, 0.) (1., 0.) (1., 0.) (1., 0.) (1., 0.)<br />

(.904803830267, 0.) (-.4695934249, 0.) (-.458255573315, 7.03515044225E-2) (-.458255573315, -7.03515044225E-2) (-.766844189822, 0.)<br />

(1., 0.) (-.497033946918, 0.) (-.213974046817, .240504338382) (-.213974046817, -.240504338382) (.183522037169, 0.)<br />

⎞<br />

⎟<br />

⎟<br />

⎟<br />

⎟<br />

⎟<br />

⎠<br />

49. 5. 51. 2.<br />

MATLAB 6.1<br />

1. a) al c) Por ejemplo, para demostrar que<br />

ay 1 bz es un vector propio con valor<br />

propio 3:<br />

y 5 [3;4;5];<br />

z 5 [4;913]; a 5 3*rand(1);<br />

b 5 4*(2*rand(1) 2 (1);<br />

w 5 a*y 1 b*z;<br />

ans 5 (A 2 3*eye(3))*w;.<br />

Verifique que ans 5 0.<br />

d) Los vectores propios para un valor<br />

propio dado forman un subespacio.<br />

3. a) al c) 1) Polinomio característico 5 λ 2<br />

1 λ 2 12, los valores propios son λ 52

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