
Complex Numbers Quiz
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Tina Gilligan
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simplify the expression (3 + 2i) + (4 - 5i).
7 - 3i
3 + 7i
7 + 3i
-1 - 3i
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perform the operation (2 - 3i) * (1 + 4i).
-6 - 5i
14 + 5i
-2 + 7i
8 - 3i
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the conjugate of the complex number 5 + 7i.
5 + 7i
5 - 7i
5 + 7
7 - 5i
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve the quadratic equation x^2 + 4x + 4 = 0 to find the complex roots.
-2
3
-1
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the square root of the complex number -9 + 12i.
3-2i
3+2i
3+2i or -3-2i
-3+2i
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Divide the complex numbers (6 + 8i) / (3 - 4i).
1 + 2i
2 + i
-1 + 2i
2 - i
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the product of the complex numbers (4 - 3i) * (2 + 5i).
23 + 14i
23 - 14i
-23 + 14i
-23 - 14i
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