यदि \(U=\{काला,सफेद,लाल,पीला\}\) और \(A=\{काला,पीला\}\) है तो (A') क्या है?
If \(U=\{black,white,red,yellow\}\) and \(A=\{black,yellow\}\), what is (A')?
Explanation opens after your attempt
B. ({सफेद,लाल})({white,red})
Concept
After removing the colors of (A), white and red remain in (U). Hence (A'={white,red}).
Why this answer is correct
The correct answer is B. ({सफेद,लाल}) / ({white,red}). After removing the colors of (A), white and red remain in (U). Hence (A'={white,red}).
Exam Tip
(A) के रंग हटाने पर (U) में सफेद और लाल बचते हैं। इसलिए (A'={सफेद,लाल}) है।
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