यदि (n(A)=4), (n(B)=5) और (n\(A\cap B\)=2), तो (n(\(A\cap B\)\times\(A\cup B\))) कितना है?
If (n(A)=4), (n(B)=5), and (n\(A\cap B\)=2), what is (n(\(A\cap B\)\times\(A\cup B\)))?
Explanation opens after your attempt
C. (14)
Concept
(n\(A\cup B\)=4+5-2=7) and (n\(A\cap B\)=2). Hence the total is \(2\cdot7=14\).
Why this answer is correct
The correct answer is C. (14). (n\(A\cup B\)=4+5-2=7) and (n\(A\cap B\)=2). Hence the total is \(2\cdot7=14\).
Exam Tip
(n\(A\cup B\)=4+5-2=7) और (n\(A\cap B\)=2)। इसलिए कुल \(2\cdot7=14\) है।
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