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34. C) repede va rog


34 C Repede Va Rog class=

Răspuns :

(-1+2/3)^-3:a/b=(-1/3)^-1

(-3/3 + 2/3)^-3 : a/b= -3

(-1/3)^-3 : a/b=-3

(-3)^3 : a/b = -3

-27:a/b= -3

a/b= -3/-27

a/b=3/27

a/b=1/9

=> b/a =9/1=9

Succes.