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rezolvati
[tex] \sqrt{7} y = 7[/tex]


Răspuns :

Salut,

[tex]y=\dfrac{7}{\sqrt7}=\dfrac{(\sqrt7)^2}{\sqrt7}=\sqrt7.[/tex]

Green eyes.

[tex]\sqrt{7}y=7[/tex]

y=[tex]\dfrac{7}{\sqrt{7}}=\dfrac{7\sqrt{7}}{7}=\sqrt{7}[/tex]

=>y=[tex]\sqrt{7}[/tex]

Verificare:

[tex]\sqrt{7}\cdot\sqrt{7}=7[/tex] adevărat