यदि \(A=\{1\}\) और \(B=\{1,2\}\) है, तो कौन सा कथन सही है?
If \(A=\{1\}\) and \(B=\{1,2\}\), which statement is correct?
Explanation opens after your attempt
Correct Answer
B. \(A\times B\ne B\times A\)
Concept
\(A\times B={(1,1),(1,2)}\) and \(B\times A={(1,1),(2,1)}\). Similar looking numbers do not remove the importance of order.
Why this answer is correct
The correct answer is B. \(A\times B\ne B\times A\). \(A\times B={(1,1),(1,2)}\) and \(B\times A={(1,1),(2,1)}\). Similar looking numbers do not remove the importance of order.
Exam Tip
\(A\times B={(1,1),(1,2)}\) और \(B\times A={(1,1),(2,1)}\) हैं। केवल दिखने में समान संख्याएं होने से क्रम नहीं बदलता।
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