यदि \(A=\{1,2,3\}\), \(B=\{2,3,4\}\), तो (A\times\(B\setminus A\)) क्या है?
If \(A=\{1,2,3\}\), \(B=\{2,3,4\}\), what is (A\times\(B\setminus A\))?
Explanation opens after your attempt
A. ({(1,4),(2,4),(3,4)})
Concept
\(B\setminus A={4}\), so (4) becomes the second coordinate with each element of (A). Find the difference before multiplying.
Why this answer is correct
The correct answer is A. ({(1,4),(2,4),(3,4)}). \(B\setminus A={4}\), so (4) becomes the second coordinate with each element of (A). Find the difference before multiplying.
Exam Tip
\(B\setminus A={4}\), इसलिए (A) के प्रत्येक तत्व के साथ (4) दूसरा घटक बनेगा। अंतर निकालकर ही गुणन करें।
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