Question

Cât face [-0,(3)] la puterea 3
Vă rog am nevoie urgent!!!​

Answer 1

eu as transforma fractia asta zecimala in fractie ordinara, adica: 0,(3)=9/9=1/3

(-1/3)³= -1/27 (iar acum daca vrei o poti transforma iar in fractie zecimala)

-1/27= -0,(037)

Answer 2

Răspuns:

$= - \frac{ 1}{27}$

Explicație pas cu pas:

$[ - 0,(3)] {}^{3} = \Big( - \frac{3 {}^{(3} }{9} \Big) ^{3} = \Big( - \frac{1}{3} \Big) ^{3} = - \frac{1 {}^{3} }{3 {}^{3} } = \boxed{- \frac{1}{27} }$