Can Any Matrix be Reduced to a Canonical Matrix?

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Homework Statement


I have a question that doesn't relate to a specific problem:
Can any matrix be reduced to a canonical matrix?

Homework Equations



the three elementry operations

The Attempt at a Solution



I think that the answer is yes and that the only way that a linear system has no answer is when the lowest non-zero row has the form of: (0,..,0,1)
Is that right?
Thanks.
 
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What is a 'canonical' matrix? Jordan canonical form? Row echelon form? Reduced row echelon form?
 
Reduced row echelon form.
 
Have you tried to put matrices in row ecehlon for using the operations? It's always worked, right. NOw, do you need to justify that, or is it just a yes/no question?
 
This wasn't a homework question, i just was asking to see if i understood correctly, so it's a yes/no question.
 
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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