यदि \(A=\{1,2,3,4,5,6\}\), तो (\mathcal{P}(A)) में ऐसे कितने उपसमुच्चय हैं जिनमें (1) या (2) में से कम से कम एक है?
If \(A=\{1,2,3,4,5,6\}\), how many subsets in (\mathcal{P}(A)) contain at least one of (1) or (2)?
Explanation opens after your attempt
A. (48)
Concept
There are (64) total subsets, and those containing neither (1) nor (2) are \(2^4=16\). Hence the answer is (64-16=48).
Why this answer is correct
The correct answer is A. (48). There are (64) total subsets, and those containing neither (1) nor (2) are \(2^4=16\). Hence the answer is (64-16=48).
Exam Tip
कुल उपसमुच्चय (64) हैं और जिनमें (1,2) दोनों नहीं हैं वे \(2^4=16\) हैं। इसलिए उत्तर (64-16=48) है।
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