SOLUTION: What other sets of numbers there are other than the set of real numbers and its subsets.

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Question 56406: What other sets of numbers there are other than the set of real numbers and its subsets.
Answer by AgusKwan(7) About Me  (Show Source):
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Complex number can be represent by a + bI
What other sets of numbers there are other than the set of real numbers and its subsets. ==> Complex number with imaginair part is not zero. (b not equal to 0)
e.g. 2+3i, 4i, 5-3i