यदि \(A=\{2,4\}\) और \(B=\{6,8\}\) है, तो \(A\times B\) में कुल कितने तत्व होंगे?
If \(A=\{2,4\}\) and \(B=\{6,8\}\), how many elements are in \(A\times B\)?
Explanation opens after your attempt
C. (4)
Concept
(A) has (2) elements and (B) has (2) elements, so \(2\times 2=4\). For small sets, you may also list all pairs to check.
Why this answer is correct
The correct answer is C. (4). (A) has (2) elements and (B) has (2) elements, so \(2\times 2=4\). For small sets, you may also list all pairs to check.
Exam Tip
(A) में (2) और (B) में (2) तत्व हैं, इसलिए \(2\times 2=4\)। छोटी सूचियों में चाहें तो सभी युग्म लिखकर भी जांचें।
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