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$\frac{x}{a} + \frac{y}{b} + \frac{z}{c} = \sqrt{2}$ $\frac{a}{x} + \frac{b}{y} + \frac{c}{z} = 0$ $\frac{x^2}{a^2} + \frac{y^2}{b^2} + \frac{z^2}{c^2} = \ ?$

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