Learning Resources

Answers to pre-test
1. 7 + 7i
2. -7 -16i
3.
4.
5.
6.
7. -13 +26 i
8.
9. 84
10. 5 + 12i
11. 15 + 20i
12. 2 + 11i
13.
14.
15. If a complex number is the root of an equation, then its conjugate is also a root of the equation. In other words, complex roots occur in conjugate pairs.