# Is i in algebra rational or irrational?

"i" as in imaginary number

### 10 Answers

- Jim MoorLv 71 month ago
Rational for most people's needs.

Complex once you get below the surface.

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- 1 month ago
I is an imaginary number, not a real number, therefore, it cannot be classified as rational or irrational.

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- Iggy RockoLv 71 month ago
neither because rational and irrational apply only to real numbers

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- busterwasmycatLv 71 month ago
It is not only not rational, it is not real.

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- ?Lv 71 month ago
NEITHER. The number i belongs to the Complex Number System.

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- CarolOklaNolaLv 71 month ago
Irrational. A lower case "i" is uses for the square root of -1. If you use "I," no one else knows what you are talking about.

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- PuzzlingLv 71 month ago
The rational and irrational numbers are subsets of the real numbers. The imaginary number i is not a real number and is therefore neither rational not irrational.

Your question is similar to asking if 0.5 is even or odd. Even and odd parity only apply to the integers so it wouldn't make sense to ask if a non-integer was even or odd.

Answer:

Neither

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- coshiro11 month agoReport
I get it now. Thank you so much!

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- 1 month ago
Can i be expressed as the ratio of 2 integers? If yes, then it is rational. If not, then it is irrational.

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- Anonymous1 month ago
irrational...............

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