\(यदि (U={1,2,\ldots,28}), (A={x:x \in U,x\) विषम है\(}) और (B={x:x \in U,7\mid x}), तो (A'\cap B) क्या है\)?
\(If (U={1,2,\ldots,28}), (A={x:x \in U,x\) is odd\(}), and (B={x:x \in U,7\mid x}), what is (A'\cap B)\)?
Explanation opens after your attempt
Correct Answer
A. ({14,28})
Concept
(A') is the set of even numbers. Among multiples of (7), the even members are (14) and (28).
Why this answer is correct
The correct answer is A. ({14,28}). (A') is the set of even numbers. Among multiples of (7), the even members are (14) and (28).
Exam Tip
(A') सम संख्याओं का समुच्चय है। (7) के गुणजों में सम सदस्य (14) और (28) हैं।
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