Dividing Complex Numbers

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the result of (4-5i)(4+5i)?
Back
41
2.
FLASHCARD QUESTION
Front
What does i² equal?
Back
-1
3.
FLASHCARD QUESTION
Front
What is the result of (9+4i)/(-1-2i)?
Back
-17+14i/5
4.
FLASHCARD QUESTION
Front
What is the result of (2i)(3i)?
Back
-6
5.
FLASHCARD QUESTION
Front
What is the conjugate of (-5 + 7i)?
Back
(-5 - 7i)
6.
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.
7.
FLASHCARD QUESTION
Front
What is the imaginary unit 'i'?
Back
The imaginary unit 'i' is defined as the square root of -1.
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