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cu cat este egal 1/3^2019-1/3^2019+1 = 2×(1/3)^2019​

Răspuns :

Explicație pas cu pas:

1/3^2019=1/3^2019

1/3^2019-1/3^2019+1=1

2•(1/3)^2019=2•1/(3^2019)=2/(3^2019)