यदि \(A=\{2,4,6,8\}\), \(B=\{4,8\}\) और \(C=\{1,3,5\}\) हैं, तो \((A-B)\times C\) में कितने अवयव होंगे?
If \(A=\{2,4,6,8\}\), \(B=\{4,8\}\) and \(C=\{1,3,5\}\), how many elements are in \((A-B)\times C\)?
Explanation opens after your attempt
B. (6)
Concept
(A-B={2,6}), so (n\((A-B)\times C\)=2\times3=6). It is necessary to find the set difference first.
Why this answer is correct
The correct answer is B. (6). (A-B={2,6}), so (n\((A-B)\times C\)=2\times3=6). It is necessary to find the set difference first.
Exam Tip
(A-B={2,6}), इसलिए (n\((A-B)\times C\)=2\times3=6)। पहले समुच्चय अंतर निकालना जरूरी है।
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