20. In the diagram on the right, the points P and Q represent the complex numbers z and w respectively (a) Explain why |z - w |2| + |w|]. (b) Indicate on the diagram the point R representing z + w о...

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Extracted text: 20. In the diagram on the right, the points P and Q represent the complex numbers z and w respectively (a) Explain why |z - w |2| + |w|]. (b) Indicate on the diagram the point R representing z + w о (c) What type of quadrilateral is OPRQ? (d) If |z о | wl, what can be said about the complex х number