alleryகணங்கள் A மற்றும் B ஆகியவற்றின் வெட்டைக் குறிக்கும் குறியீடு எது?
AA ⊂ B
BA ∩ B
CA ∪ B
DA − B
Answer & Solution
Correct answer: B. A ∩ B
வெட்டைக் குறிக்கும் '∩' (cap) குறியீடு A மற்றும் B ஆகியவற்றின் பொதுவான உறுப்புகளைக் குறிக்கிறது (A ∩ B), அதே சமயம் '∪' (cup) குறியீடு சேர்ப்பைக் குறிக்கிறது.
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