Solving Linear Systems with Hermitian Matrices

tamtam402
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Homework Statement


I can find my eigenvalues just fine, and they're both real, as expected. My first eigenvalue is -3, which I know is correct.

I have the equations 5x+(3-i)y=0, (3+i)x+2y=0

Both of the equations come from my hermitian matrix, after I substituted λ=-3.

Homework Equations





The Attempt at a Solution



I have absolutely no idea how to solve this. This case is simple enough to be solved by trial and error, but how would I proceed if I had harder equations?

I can't use both equations since I get x=x or y=y if I substitute one into the other, since they're both the same equation.
 
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Nevermind, doing another (easier) exercise allowed me to see that I only have to set ax = by, and force a value to either x or y.
 
Prove $$\int\limits_0^{\sqrt2/4}\frac{1}{\sqrt{x-x^2}}\arcsin\sqrt{\frac{(x-1)\left(x-1+x\sqrt{9-16x}\right)}{1-2x}} \, \mathrm dx = \frac{\pi^2}{8}.$$ Let $$I = \int\limits_0^{\sqrt 2 / 4}\frac{1}{\sqrt{x-x^2}}\arcsin\sqrt{\frac{(x-1)\left(x-1+x\sqrt{9-16x}\right)}{1-2x}} \, \mathrm dx. \tag{1}$$ The representation integral of ##\arcsin## is $$\arcsin u = \int\limits_{0}^{1} \frac{\mathrm dt}{\sqrt{1-t^2}}, \qquad 0 \leqslant u \leqslant 1.$$ Plugging identity above into ##(1)## with ##u...
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