Week 3: Complex Numbers – Day 1

Review of arithmetic of complex numbers

Simplify these expressions. The final result should be a number of the form A + Bi.

1. (-1 + i) + (3 + 2i)

2. (7 + 2i) + 10

3. (2 + 2i) x 3i

4. (5 + 3i) x (5 – 3i)

5. (4 + i) x (1 + 6i)

Answers