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Scrieti sub forma de puteri care au aceeasi baza:
a)[tex] (\frac{4}{9} )^{5} si (\frac{8}{27})^{5}[/tex]
b)[tex] [0,2(6)^{5}] si \frac{64}{3375}[/tex]


Răspuns :

a)(4/9)^5=[(2/3)²]^5=(2/3)^10
(8/27)^5=[(2/3)³]^5=(2/3)^15

b)0,2(6)=(26-2)/90=24/90=12/45=4/15
0,2(6)]^5=(4/15)^5
64/3375=(2³x2³)/(3³x5³)=2³x(2/15)³