Complex Numbers
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Wayground Content
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Student preview
15 questions
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1.
FLASHCARD QUESTION
Front
Define a complex number.
Back
A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit, defined as i² = -1.
Tags
CCSS.HSN.CN.A.1
2.
FLASHCARD QUESTION
Front
What is the imaginary unit 'i'?
Back
The imaginary unit 'i' is defined as the square root of -1, which means i² = -1.
Tags
CCSS.HSN.CN.A.1
3.
FLASHCARD QUESTION
Front
How do you add complex numbers?
Back
To add complex numbers, combine their real parts and their imaginary parts separately. For example, (a + bi) + (c + di) = (a + c) + (b + d)i.
Tags
CCSS.HSN.CN.A.2
4.
FLASHCARD QUESTION
Front
How do you subtract complex numbers?
Back
To subtract complex numbers, subtract their real parts and their imaginary parts separately. For example, (a + bi) - (c + di) = (a - c) + (b - d)i.
Tags
CCSS.HSN.CN.A.2
5.
FLASHCARD QUESTION
Front
What is the product of two imaginary units?
Back
The product of two imaginary units is i * i = i² = -1.
Tags
CCSS.HSN.CN.A.2
6.
FLASHCARD QUESTION
Front
Simplify: (4 + 7i) - (3 + 2i)
Back
1 + 5i.
Tags
CCSS.HSN.CN.A.2
7.
FLASHCARD QUESTION
Front
Find the sum: (5 - 2i) + (-7 + 8i)
Back
-2 + 6i.
Tags
CCSS.HSN.CN.A.2
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