CAPE Pure Mathematics Unit 2 · May/June 2019 · Paper 1 · Question Q3

The modulus of the complex number \frac{1}{2} - \frac{1}{2}i is

1. (A)\frac{1}{2\sqrt{2}}
2. (B)\frac{1}{\sqrt{2}}
3. (C)\sqrt{2}
4. (D)2\sqrt{2}