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4 supra 5 la puterea  -1 = ?
1supra3 totul la puterea -2 =?
4 la puterea 0 =?



Răspuns :

4 supra 5 la puterea -1 = 5 supra 4 la puterea 1 .
4 la puterea 0 = 1
Gabi23
([tex] \frac{4}{5} [/tex])⁻¹=[tex] \frac{1}{\frac{4}{5} } [/tex]=1·[tex] \frac{5}{4} [/tex]= [tex] \frac{5}{4} [/tex]
([tex] \frac{1}{3} [/tex] )⁻²=[tex] \frac{1}({\frac{1}{3} }[/tex])²=[tex] \frac{1}{\frac{1}{9}}[/tex]=1·[tex] \frac{9}{1} [/tex]= 9
4⁰=1