Lesson Example Discussion Quiz: Class Homework |
Quiz Discussion |
Title: Multiplication of complex numbers |
Grade: 8-b Lesson: S2-L6 |
Explanation: Let us discuss a few questions on this topic and review the answers to every question. |
Quiz: Discussion in Class
| Problem Id | Problem | Options |
|---|---|---|
Steps 1 |
Compute the product of the complex numbers (2 + 3i) and (4 − i). What is the result in standard form? |
A) 10 - 11i B) -11 - 10i C) -10 + 5i D) 11 + 10i |
Steps 2 |
Multiply \$z_1 = 7 + 4i\$ and \$z_2 = - 9 + 5i\$. |
A) - 38 - 2i B) - 83 - 1i C) 38 - 2i D) 83 +1i |
Steps 3 |
What do you get when multiplying (1 + 2i) by (3 + 4i)? Express your answer as a complex number. |
A) 5 - 10i B) -15 + 5i C) 15 - 5i D) -5 + 10i |
Steps 4 |
Multiply the following complex numbers ( -16 + 2i) and ( 8 - 8i). |
A) 112 + 144i B) 121 - 144i C) -112 + 144i D) - 121 + 144i |
Steps 5 |
Determine the result when multiplying the complex numbers \$3(6 - 10i)\$ and \$2(10 + 13i)\$. |
A) 1140 - 132i B) 1401- 132i C) 1140 + 132i D) 1401 +132i |
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