alleryWhich number set is written with the double-struck letter ℚ?
ASet of real numbers
BSet of rational numbers
CSet of complex numbers
DSet of prime numbers
Answer & Solution
Correct answer: B. Set of rational numbers
1. Blackboard bold letters stand for the basic number systems.
2. ℚ denotes rational numbers, the fractions of two integers.
3. Real numbers are ℝ and complex numbers are ℂ.
_Source: Wikipedia, Glossary of mathematical symbols, Blackboard bold_
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