Questão 776790

\(-\frac{1}{2}\) e \(-\frac{1}{2}\)

\(-\frac{1}{2}\) e \(\frac{1}{2}\)

\(\frac{1}{2}\) e - \(\frac{1}{2}\)

\(\frac{1}{2}\) e \(\frac{1}{2}\)

\(\frac{1}{2}\) e -1