यदि \(A=\varnothing\) और सार्वत्रिक समुच्चय (U) है, तो (A') किसके बराबर होगा?

If \(A=\varnothing\) and the universal set is (U), what is (A') equal to?

Explanation opens after your attempt
Correct Answer

B. (U)

Step 1

Concept

The empty set has no elements, so all elements of (U) lie in its complement. Hence \(\varnothing'=U\).

Step 2

Why this answer is correct

The correct answer is B. (U). The empty set has no elements, so all elements of (U) lie in its complement. Hence \(\varnothing'=U\).

Step 3

Exam Tip

रिक्त समुच्चय में कोई तत्व नहीं होता, इसलिए (U) के सभी तत्व उसके पूरक में आते हैं। अतः \(\varnothing'=U\)।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\varnothing\) और सार्वत्रिक समुच्चय (U) है, तो (A') किसके बराबर होगा? / If \(A=\varnothing\) and the universal set is (U), what is (A') equal to?

Correct Answer: B. (U). Explanation: रिक्त समुच्चय में कोई तत्व नहीं होता, इसलिए (U) के सभी तत्व उसके पूरक में आते हैं। अतः \(\varnothing'=U\)। / The empty set has no elements, so all elements of (U) lie in its complement. Hence \(\varnothing'=U\).

Which concept should I revise for this Mathematics MCQ?

The empty set has no elements, so all elements of (U) lie in its complement. Hence \(\varnothing'=U\).

What exam hint can help solve this Mathematics question?

रिक्त समुच्चय में कोई तत्व नहीं होता, इसलिए (U) के सभी तत्व उसके पूरक में आते हैं। अतः \(\varnothing'=U\)।