यदि \(A=\{2,3,5,7\}\) और \(B=\{2,3,5,7\}\) है, तो (A-B) क्या होगा?
If \(A=\{2,3,5,7\}\) and \(B=\{2,3,5,7\}\), what is (A-B)?
Explanation opens after your attempt
Correct Answer
C. \( \varnothing \)
Concept
The two sets are equal, so no element of (A) remains. Remember that \(A-A=\varnothing\).
Why this answer is correct
The correct answer is C. \( \varnothing \). The two sets are equal, so no element of (A) remains. Remember that \(A-A=\varnothing\).
Exam Tip
दोनों समुच्चय समान हैं इसलिए (A) का कोई नया अवयव नहीं बचता। याद रखें \(A-A=\varnothing\) होता है।
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