AS June 2018 Paper 1 Q1

1 \(z = 3 - \mathrm{i}\)

Determine the value of \(zz^*\)

Circle your answer. [1 mark]

• \(10\)
• \(\sqrt{10}\)
• \(10 - 2\mathrm{i}\)
• \(10 + 2\mathrm{i}\)