alleryThe double-struck capital ℂ is the standard sign for what?
AComplex numbers
BCounting numbers
CConstant numbers
DCube numbers
Answer & Solution
Correct answer: A. Complex numbers
1. ℂ denotes the set of complex numbers.
2. It is one of the standard blackboard bold number systems.
3. It is not a set of constants or cubes.
_Source: Wikipedia, Glossary of mathematical symbols, Blackboard bold_
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