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Sagot :

Bjr

[tex] \frac{x}{ \sqrt{x {}^{2} } + 1} = 0[/tex]

[tex]x = 0[/tex]

[tex] \frac{0}{ \sqrt{0 {}^{2} + 1} } = 0[/tex]

[tex]0 = 0[/tex]

[tex]x = 0[/tex]

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