यदि \(A^c=U\) है, तो (A) किसके बराबर होगा?

If \(A^c=U\), then (A) is equal to what?

Explanation opens after your attempt
Correct Answer

A. \(\varnothing\)empty set

Step 1

Concept

If the whole (U) is outside (A), then (A) has no element. Therefore \(A=\varnothing\).

Step 2

Why this answer is correct

The correct answer is A. \(\varnothing\) / empty set. If the whole (U) is outside (A), then (A) has no element. Therefore \(A=\varnothing\).

Step 3

Exam Tip

यदि पूरा (U) ही (A) के बाहर है, तो (A) में कोई तत्व नहीं है। इसलिए \(A=\varnothing\) होगा।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A^c=U\) है, तो (A) किसके बराबर होगा? / If \(A^c=U\), then (A) is equal to what?

Correct Answer: A. \(\varnothing\) / empty set. Explanation: यदि पूरा (U) ही (A) के बाहर है, तो (A) में कोई तत्व नहीं है। इसलिए \(A=\varnothing\) होगा। / If the whole (U) is outside (A), then (A) has no element. Therefore \(A=\varnothing\).

Which concept should I revise for this Mathematics MCQ?

If the whole (U) is outside (A), then (A) has no element. Therefore \(A=\varnothing\).

What exam hint can help solve this Mathematics question?

यदि पूरा (U) ही (A) के बाहर है, तो (A) में कोई तत्व नहीं है। इसलिए \(A=\varnothing\) होगा।