Lesson Example Discussion Quiz: Class Homework |
Quiz At Home |
Title: Division of complex numbers |
Grade: 8-b Lesson: S2-L7 |
Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the five problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts. |
Quiz: at Home
Problem Id | Problem | Options |
---|---|---|
1 |
Divide and simplify: \$ (1 - 2i)/(3 + 5i) \$. |
A) \$ -7/34 - 11/34 i \$ B) \$ 8/34 - 12/34 i \$ C) \$ 6/34 + 10/34 i \$ D) \$ 10/32 - 11/32 i \$ |
2 |
Simplify the complex fraction: \$ (8 + 9i)/(2 + 3i) \$. |
A) \$ 47/12 + 7/12 i \$ B) \$ 43/13 - 6/13 i \$ C) \$ 33/14 + 5/14 i \$ D) \$ 31/10 - 9/10 i \$ |
3 |
Determine the quotient: \$ (3 + 7i)/(1 - 4i) \$. |
A) \$ -27/18 - 19/18 i \$ B) \$ 22/17 + 29/17 i \$ C) \$ -25/17 + 19/17 i \$ D) \$ 29/18 + 13/18 i \$ |
4 |
Find the simplified form of: \$ (5 - 3i)/(4 + 2i) \$. |
A) \$ 7/12 + 15/12 i \$ B) \$ 5/12 - 11/12 i \$ C) \$ 9/10 + 13/10 i \$ D) \$ 7/10 - 11/10 i \$ |
5 |
Compute the result of dividing: \$ (6 - 8i)/(3 - 4i) \$. |
A) 1 B) 3 C) 7 D) 2 |
6 |
Calculate \$ (- 2 - 3i)/(- 1 + 2i) \$ and provide the result in standard form. |
A) 0.8 - 1.4i B) - 0.95 - 2.4i C) - 0.8 + 1.4i D) - 0.95 + 2.4i |
7 |
Find the quotient of \$ (- 1 + 6i)/( 5 + i)\$. |
A) \$ 1/-26 - 31/26 i \$ B) \$ 1/26 + 31/26 i \$ C) \$ 3/27 - 3/26 i \$ D) \$ 1/26i + 31/26 \$ |
8 |
If \$z_1 =1 + 2i\$ and \$z_2 = 3 − 4i\$, divide \$z_1 \$ by \$z_2 \$ and express the result in the form a+bi. |
A) \$ - 1/5 + 2/5 i \$ B) \$5 + 2.5 i \$ C) \$ 1.5 + 2/5 i \$ D) \$ 1.5 + 2.5 i \$ |
9 |
Divide (4 + 5i) by (2 − i) and find the real and imaginary parts of the result. |
A) Real part: \$3.5\$, B) Real part: \$3/5\$, C) Real part: \$2/3\$, D) Real part: \$5.3\$, |
10 |
Divide (2 − 3i) by (0 + i) and simplify the result. |
A) 3 + 2i B) 2 - 3i C) - 3 - 2i D) 2 + 3i |
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