यदि \(A=\{1,2\}\), \(B=\{3,4\}\) और \(C=\{5\}\) हैं, तो (\(A\times B\)\times C) में अवयवों की संख्या क्या होगी?
If \(A=\{1,2\}\), \(B=\{3,4\}\) and \(C=\{5\}\), what is the number of elements in (\(A\times B\)\times C)?
Explanation opens after your attempt
Correct Answer
A. (4)
Concept
(n\(A\times B\)=4) and (n(C)=1), so (n(\(A\times B\)\times C)=4). Remember that (\(A\times B\)) itself is a set.
Why this answer is correct
The correct answer is A. (4). (n\(A\times B\)=4) and (n(C)=1), so (n(\(A\times B\)\times C)=4). Remember that (\(A\times B\)) itself is a set.
Exam Tip
(n\(A\times B\)=4) और (n(C)=1), इसलिए (n(\(A\times B\)\times C)=4)। ध्यान रखें कि (\(A\times B\)) खुद एक समुच्चय है।
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