P.6-6.6 Review Worksheet
Write the result in standard form.
1. (2 – 3i) + (6 + 5i) =
2. (i2 + 3) + (7 + i3) =
3. (2 + 3i)(2 – i) =
4. (-3 – 4i)(1 + 2i) =
5.
6.
2+𝑖
2−𝑖
5+2𝑖
2−3𝑖
7. (3 + 2i)2
8. (2 – 2i)3
9. 4 + √ −25
10. √ 25 – √ −49
Find the trigonometric form of the complex #.
11. 2 + 2i
12. -2 + 2i√ 3
Write the complex number in standard form.
13. 3(cos30 + isin30)
7
7
14. √ 2 (cos 6 + isin 6 )
Find z1 z2 and
𝒛𝟏
𝒛𝟐
. Write in trigonometric form.
15. z1=7(cos25 + isin25) z2=3(cos120 + isin120)
16. z1 = 2(cos30 + isin30) z2 = 3(cos60 + isin60)
Use De Moivre’s Theorem to find the indicated
power and write your answer in standard form.
17. [2(cos135 + isin135)]6
18. (1 – √ 3i)3