Complex Numbers

Flashcard
•
Mathematics
•
11th Grade
•
Hard
+2
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is 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.
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.
Tags
CCSS.HSN.CN.A.1
3.
FLASHCARD QUESTION
Front
What does i^2 equal?
Back
i^2 = -1.
Tags
CCSS.HSN.CN.A.1
4.
FLASHCARD QUESTION
Front
How do you add complex numbers?
Back
To add complex numbers, add the real parts and the imaginary parts separately.
Tags
CCSS.7.NS.A.1C
5.
FLASHCARD QUESTION
Front
How do you subtract complex numbers?
Back
To subtract complex numbers, subtract the real parts and the imaginary parts separately.
Tags
CCSS.HSN.CN.A.1
6.
FLASHCARD QUESTION
Front
How do you multiply complex numbers?
Back
To multiply complex numbers, use the distributive property (FOIL) and apply the fact that i^2 = -1.
Tags
CCSS.HSN.CN.A.2
7.
FLASHCARD QUESTION
Front
What is the conjugate of a complex number a + bi?
Back
The conjugate of a complex number a + bi is a - bi.
Tags
CCSS.HSN.CN.A.3
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