Algebra II, Chapter 5 Section 5
Algebra II, Chapter 5 Section 5.6: Radical Expressions
1. Finding the _____________ ____________ and ___________ a number are inverses of each other.
2. Index of a radical:
3. Radicand:
4. Can you take the square root of a negative number:
5. Can you take the cube root of a negative number:
Fill in the Chart of Roots and Powers
|Root n |[pic] |[pic] |[pic] |[pic] |[pic] |
|1 |1 |1 | | | |
|2 |4 |8 |16 | | |
|3 |9 | | | | |
|4 | | | | | |
|5 | | | | | |
|6 | | | | | |
|7 | | | | | |
|8 | | | | | |
|9 | | | | | |
|10 | | | | | |
|11 | | | | | |
|12 | | | | | |
|13 | | | | | |
|14 | | | | | |
|15 | | | | | |
Section 5.9: Complex Numbers
Can you take the square root of a negative number?
What do we call even roots with negative radicands?
What letter represents even roots with negative radicands?
i = R =
[pic] = R =
[pic]= R =
[pic] = R =
Complex numbers are in the form:
Who discovered the imaginary plane?
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