# Is i in algebra rational or irrational?

"i" as in imaginary number

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

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- CarolOklaLv 78 months 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.

- PuzzlingLv 78 months 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

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

- Anonymous8 months ago
irrational...............

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