यदि \(A=\{1,2\}\), \(B=\{3\}\) और \(C=\{4,5,6\}\) हैं, तो (|\(A\times B\)\times C|) क्या होगा?
If \(A=\{1,2\}\), \(B=\{3\}\), and \(C=\{4,5,6\}\), what is (|\(A\times B\)\times C|)?
Explanation opens after your attempt
Correct Answer
B. (6)
Concept
\(|A\times B|=2\cdot1=2\), then (|\(A\times B\)\times C|=2\cdot3=6). Cardinalities multiply in nested products too.
Why this answer is correct
The correct answer is B. (6). \(|A\times B|=2\cdot1=2\), then (|\(A\times B\)\times C|=2\cdot3=6). Cardinalities multiply in nested products too.
Exam Tip
\(|A\times B|=2\cdot1=2\) और फिर (|\(A\times B\)\times C|=2\cdot3=6)। संयुक्त गुणनफल में भी कार्डिनलिटी गुणा होती है।
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