$\begin{array}{1 1} (1) \bigg(\large\frac{1}{2},\frac{1}{2} \bigg) \\ (2) \bigg(\large\frac{1}{2},-\frac{1}{3} \bigg) \\ (3) \bigg(\large\frac{1}{2},\frac{1}{3} \bigg) \\ (4) \bigg(-\large\frac{1}{2},-\frac{1}{2} \bigg)\end{array} $