यदि \(A=\{1,2,3,4,5\}\), \(B=\{1,3,5\}\) और \(C=\{0,2\}\) हैं, तो \((A-B)\times C\) में कितने अवयव होंगे?
If \(A=\{1,2,3,4,5\}\), \(B=\{1,3,5\}\) and \(C=\{0,2\}\), how many elements are there in \((A-B)\times C\)?
Explanation opens after your attempt
A. (4)
Concept
(A-B={2,4}), so (n\((A-B)\times C\)=2\times2=4). It is necessary to find the set difference first.
Why this answer is correct
The correct answer is A. (4). (A-B={2,4}), so (n\((A-B)\times C\)=2\times2=4). It is necessary to find the set difference first.
Exam Tip
(A-B={2,4}), इसलिए (n\((A-B)\times C\)=2\times2=4)। पहले समुच्चय अंतर निकालना जरूरी है।
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