Question

17/2n-1 apartine lui Z.Va rog sa ma ajutati RAPID

Answer 1

2n-1∈{-17;-1;1;17}

2n∈{-16;0;2;18}

n∈{-8;0;1;9} daca n∈Z

daca secetre  n∈N ramane n∈{0;1;9}

as rapid as that!