हर समुच्चय के घात समुच्चय में कौन सा समुच्चय अवश्य होता है?
Which set is always present in the power set of every set?
Explanation opens after your attempt
B. \(\emptyset\)
Concept
The empty set is a subset of every set. Therefore \(\emptyset\) is an element of every power set.
Why this answer is correct
The correct answer is B. \(\emptyset\). The empty set is a subset of every set. Therefore \(\emptyset\) is an element of every power set.
Exam Tip
रिक्त समुच्चय हर समुच्चय का उपसमुच्चय होता है। इसलिए \(\emptyset\) हर घात समुच्चय का तत्व है।
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