A2_3.2.1_Complex Numbers
Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Standards-aligned
Daphne Long
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the format used to write complex numbers?
Tags
CCSS.HSN.CN.A.1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1
-1
Tags
CCSS.HSN.CN.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the imaginary part when multiplying complex conjugates?
It remains the same
It becomes negative
It becomes zero
(cancels out)
It doubles
Tags
CCSS.HSN.CN.C.8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simplify. (7 - 11i) + (5 - 2i) = _______
12 - 13i
2 - 9i
-12 + 13i
12 + 13i
Tags
CCSS.HSN.CN.A.2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simplify. (-3 + 9i) - (2 - i) = _______
-5 + 10i
-1 + 8i
-5 + 8i
-1 + 10i
Tags
CCSS.HSN.CN.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simplify. (-3 + 8i) - (1 + 9i) = _______
-4 - i
-2 + 17i
-2 - 17i
4 + i
Tags
CCSS.HSN.CN.A.2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simplify. (-2 - i) + (3 + 4i) = _______
1 + 3i
-5 + 5i
-1 - 3i
5 + i
Tags
CCSS.HSN.CN.A.2
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