11.2. Arithmetic with Complex Numbers http://www.ck12.org
Practice
Simplify the following complex numbers.
1.i^252
2.i^312
3.i^411
4.i^2345
For each of the following, plot the complex number on the complex coordinate plane and determine its absolute
value.
- 6− 8 i
- 2+i
- 4− 2 i
8.− 5 i+ 1
Letc= 2 + 7 iandd= 3 − 5 i. - What isc+d?
- What isc−d?
- What isc·d?
- What is 2c− 4 d?
- What is 2c· 4 d?
- What iscd?
- What isc^2 −d^2?