Unit 6 Radicals and Imaginary Numbers

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
+2
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is a radical in mathematics?
Back
A radical is an expression that includes a root, such as a square root or cube root. For example, √4 is a radical.
Tags
CCSS.8.NS.A.1
2.
FLASHCARD QUESTION
Front
What is an imaginary number?
Back
An imaginary number is a number that can be written as a real number multiplied by the imaginary unit 'i', where i is defined as √-1.
Tags
CCSS.HSN.CN.A.1
3.
FLASHCARD QUESTION
Front
What is the value of i^2?
Back
i^2 = -1.
Tags
CCSS.HSN.CN.A.1
4.
FLASHCARD QUESTION
Front
How do you simplify √-a?
Back
√-a can be simplified to i√a.
Tags
CCSS.HSN.CN.A.1
5.
FLASHCARD QUESTION
Front
What is the result of (a + bi) + (c + di)?
Back
The result is (a + c) + (b + d)i.
Tags
CCSS.HSN.CN.A.2
6.
FLASHCARD QUESTION
Front
What is the result of (a + bi) - (c + di)?
Back
The result is (a - c) + (b - d)i.
Tags
CCSS.HSN.CN.A.2
7.
FLASHCARD QUESTION
Front
How do you multiply two complex numbers (a + bi)(c + di)?
Back
The result is (ac - bd) + (ad + bc)i.
Tags
CCSS.HSN.CN.A.2
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