कथन: यदि \(A\ne\varnothing\) और \(B\ne\varnothing\), तो \(A\times B=\varnothing\)। यह कथन कैसा है?
Statement: If \(A\ne\varnothing\) and \(B\ne\varnothing\), then \(A\times B=\varnothing\). What is this statement?
Explanation opens after your attempt
A. असत्यfalse
Concept
If both sets are non-empty, at least one ordered pair is formed. Therefore \(A\times B=\varnothing\) cannot happen.
Why this answer is correct
The correct answer is A. असत्य / false. If both sets are non-empty, at least one ordered pair is formed. Therefore \(A\times B=\varnothing\) cannot happen.
Exam Tip
यदि दोनों समुच्चय अरिक्त हैं तो कम से कम एक क्रमित युग्म बनता है। इसलिए \(A\times B=\varnothing\) नहीं हो सकता।
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