Question

Punctul C va rog din inima!!

Answer 1

[tex]\frac{a}{a+1}\ \textless \ \frac{b}{b+1}|()^{-1}\\ \\ \frac{a+1}{a}\ \textgreater \ \frac{b+1}{b}\\ \\ 1+\frac{1}{a}\ \textgreater \ 1+\frac{1}{b}\\ \\ \frac{1}{a}\ \textgreater \ \frac{1}{b} |()^{-1}\\ \\ a\ \textless \ b(A)[/tex]