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Andreea1962
a fost răspuns

Calculati suna inverselor numerelor:
[tex] \sqrt{6}+ \sqrt{5} [/tex];[tex] \sqrt{7}+ \sqrt{6} [/tex];[tex] \sqrt{8}+ \sqrt{7} [/tex]
Indicatie: [tex] \frac{1}{ \sqrt{6}+ \sqrt{5} }[/tex]+[tex] \frac{1}{ \sqrt{7}+ \sqrt{6} } [/tex]+[tex] \frac{1}{ \sqrt{8}+ \sqrt{7} } [/tex]