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[tex] \frac{9 \sqrt{6} }{6} - \frac{ \sqrt{6} }{6} = [/tex]


Răspuns :


[tex] \frac{9 \sqrt{6} }{6} - \frac{ \sqrt{6} }{6} = \frac{9 \sqrt{6} - \sqrt{6} }{6 } = \frac{8 \sqrt{6} }{6} = \frac{4 \sqrt{6} }{3} [/tex]