यदि \(U=\{a,b,c,d,e\}\) और \(A=\{a,c,e\}\) है, तो (\mathcal{P}(A')) में कितने सदस्य होंगे?
If \(U=\{a,b,c,d,e\}\) and \(A=\{a,c,e\}\), how many members will (\mathcal{P}(A')) have?
Explanation opens after your attempt
B. (4)
Concept
Here (A'=U-A={b,d}), so (|\mathcal{P}(A')|=22=4). In exams, always take complement with respect to the given universal set.
Why this answer is correct
The correct answer is B. (4). Here (A'=U-A={b,d}), so (|\mathcal{P}(A')|=22=4). In exams, always take complement with respect to the given universal set.
Exam Tip
यहां (A'=U-A={b,d}), इसलिए (|\mathcal{P}(A')|=22=4)। परीक्षा में पूरक हमेशा दिए गए सार्वत्रिक समुच्चय के सापेक्ष लें।
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