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Mathematics 17 Online
OpenStudy (anonymous):

1/9 is it real and rational, real and irrational, or complex?

OpenStudy (anonymous):

Real and rational.

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

The principal fourth root of 16 is the real rational number 2. The other three are -2, a real rational number, and 2i and -2i, both of which are purely imaginary numbers and therefore complex.

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