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Andreeachioru
a fost răspuns


[tex]( \frac{2}{ \sqrt{5} } ) {}^{ - 3} [/tex]
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Răspuns :

(2/√5)⁻³=(√5/2)³=5√5/8

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Robertinni

[tex](\frac{2}{\sqrt{5}})^{-3}=(\frac{\sqrt{5}}{2})^{3}=\frac{(\sqrt{5})^3}{2^3}=\frac{5\sqrt{5}}{8}.[/tex]

@robertinnifd

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