यदि \(A=\{1,2\}\), \(B=\{3\}\) और \(C=\{4,5\}\) हैं, तो (n\(A\times B\times C\)) कितना होगा?
If \(A=\{1,2\}\), \(B=\{3\}\), and \(C=\{4,5\}\), what is (n\(A\times B\times C\))?
Explanation opens after your attempt
Correct Answer
B. (4)
Concept
For the product of three sets, the count is (n(A)n(B)n(C)), so \(2\times 1\times 2=4\). This counts ordered triples.
Why this answer is correct
The correct answer is B. (4). For the product of three sets, the count is (n(A)n(B)n(C)), so \(2\times 1\times 2=4\). This counts ordered triples.
Exam Tip
तीन समुच्चयों के गुणन में संख्या (n(A)n(B)n(C)) होती है, इसलिए \(2\times 1\times 2=4\)। यह क्रमित त्रिकों की गिनती है।
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