Quiz 4-2: Complex Numbers, Equations with Complex Solutions
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
Joseph Walter
Used 14+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Michael and Abigail are exploring the world of imaginary numbers! Can you help them simplify this expression?
1. √-64 = ____________
8i
-8
64i
-8i
Tags
CCSS.HSN.CN.A.1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Emma and William are on a math adventure! They stumble upon a mysterious expression. Can you help them simplify it?
2√-108 = ____________
12i√3
6i√6
24i
18i√2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Evelyn and Grace are working together on a math puzzle. They come across this challenge:
Help them simplify the expression.
3. (-5i)(-3i) = ____________
-15
15i
-9i
15
Tags
CCSS.HSN.CN.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-14i
14i
-2i
-7i
Tags
CCSS.HSN.CN.C.8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Olivia and Mason are working together to simplify complex numbers. Can you help them out?
5. (8 + 3i) + (-6 - 12i) = ____________
2 - 9i
14 + 15i
-14 - 9i
2 + 9i
Tags
CCSS.HSN.CN.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sophia and Samuel are working together to simplify complex numbers. Can you help them solve this one?
6. (5 - 9i) - (1 + 4i) = ____________
4 - 13i
6 - 5i
4 + 13i
-4 - 5i
Tags
CCSS.HSN.CN.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mason and Luna are working together to simplify complex numbers. Can you help them out?
What is (9 + 5i)(4 - 2i)?
46 + 14i
38 + 28i
36 - 10i
48 + 8i
Tags
CCSS.HSN.CN.C.8
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