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Calculati: ([tex] (\frac{4}{ \sqrt{12} } - \frac{6}{ \sqrt{27} } plus \frac{6}{ \sqrt{32} } ): \sqrt{2} [/tex]

Răspuns :

= (4/2√3 - 6/3√3 + 6/4√2)  :√2
=  (2/√3-2/√3+3/2√3) : √2 
=  3/2√3:√2
=3√2/4·1/√2
= 3/4