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urgent
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12 puncte...


Urgent F 12 Puncte class=

Răspuns :

[tex] \sqrt{5} ^{-1} = \frac{1}{ \sqrt{5} }[/tex]
[tex] M_{g} =\sqrt{\frac{1}{ \sqrt{5} }* \sqrt{ \frac{5}{16} }} =\sqrt{\frac{1}{ \sqrt{5} }* \frac{ \sqrt{5} }{4}} =\sqrt{\frac{1}{4}} =\frac{1}{2}[/tex]