\[\begin{array}{l} {\text{Find }}x \cdot y \cdot z{\text{, if }}x + y + z = 1,{\text{ }}{x^3} + {y^3} + {z^3} = 2,{\text{ }}{x^5} + {y^5} + {z^5} = 3. \hfill \\ (x,{\text{ }}y,{\text{ }}z{\text{ are complex numbers}}) \hfill \\ \end{array} \]