6 In an Argand diagram the loci \(C _ { 1 }\) and \(C _ { 2 }\) are given by
$$| z | = 2 \quad \text { and } \quad \arg z = \frac { 1 } { 3 } \pi$$
respectively.
- Sketch, on a single Argand diagram, the loci \(C _ { 1 }\) and \(C _ { 2 }\).
- Hence find, in the form \(x + \mathrm { i } y\), the complex number representing the point of intersection of \(C _ { 1 }\) and \(C _ { 2 }\).