यदि \(A=\{1,2\}\), \(B=\{3,4\}\), \(C=\{5,6\}\) हैं, तो (\(A\cup B\)\times C) की कार्डिनलिटी क्या है?
If \(A=\{1,2\}\), \(B=\{3,4\}\), \(C=\{5,6\}\), what is the cardinality of (\(A\cup B\)\times C)?
Explanation opens after your attempt
C. (8)
Concept
\(A\cup B={1,2,3,4}\), so (|\(A\cup B\)\times C|=4\cdot2=8). Find the union size first.
Why this answer is correct
The correct answer is C. (8). \(A\cup B={1,2,3,4}\), so (|\(A\cup B\)\times C|=4\cdot2=8). Find the union size first.
Exam Tip
\(A\cup B={1,2,3,4}\), इसलिए (|\(A\cup B\)\times C|=4\cdot2=8)। पहले संघ की कार्डिनलिटी निकालें।
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