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13.Determinati numarul natural x,stiind ca:
a)
[tex]( \frac{2}{3})^{x} = \frac{32}{243} [/tex]
b)
[tex]( \frac{3}{2} ) ^{x} = \frac{225}{100} [/tex]


Răspuns :

Răspuns:

(2/3)ˣ=(2/3)⁵=32/243 => x=5

(3/2)ˣ=(225/100)⁽²⁵=9/4=(3/2)² => x=2