adding and subtracting complex numbers

Flashcard
•
Mathematics
•
11th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
Define complex numbers.
Back
Complex numbers are numbers that have a real part and an imaginary part, expressed in the form a + bi, where a is the real part, b is the imaginary part, and i is the imaginary unit (i = √-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
Calculate: (4 − 7i) − (-3 + 6i)
Back
7 − 13i.
Tags
CCSS.HSN.CN.A.2
6.
FLASHCARD QUESTION
Front
Calculate: -12i + 7i
Back
-5i.
Tags
CCSS.HSN.CN.A.2
7.
FLASHCARD QUESTION
Front
Calculate: (1 − 2i) + (-4 + 2i)
Back
-3.
Tags
CCSS.HSN.CN.A.2
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