यदि \(U=\{2,4,6,8\}\) और (A=U) है, तो \(A^c\) क्या होगा?

If \(U=\{2,4,6,8\}\) and (A=U), what is \(A^c\)?

Explanation opens after your attempt
Correct Answer

A. \(\varnothing\)empty set

Step 1

Concept

When (A=U), no element of (U) remains outside (A). Hence the complement is \(\varnothing\).

Step 2

Why this answer is correct

The correct answer is A. \(\varnothing\) / empty set. When (A=U), no element of (U) remains outside (A). Hence the complement is \(\varnothing\).

Step 3

Exam Tip

जब (A=U) होता है, तब (U) में (A) से बाहर कोई तत्व नहीं बचता। इसलिए पूरक \(\varnothing\) होता है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(U=\{2,4,6,8\}\) और (A=U) है, तो \(A^c\) क्या होगा? / If \(U=\{2,4,6,8\}\) and (A=U), what is \(A^c\)?

Correct Answer: A. \(\varnothing\) / empty set. Explanation: जब (A=U) होता है, तब (U) में (A) से बाहर कोई तत्व नहीं बचता। इसलिए पूरक \(\varnothing\) होता है। / When (A=U), no element of (U) remains outside (A). Hence the complement is \(\varnothing\).

Which concept should I revise for this Mathematics MCQ?

When (A=U), no element of (U) remains outside (A). Hence the complement is \(\varnothing\).

What exam hint can help solve this Mathematics question?

जब (A=U) होता है, तब (U) में (A) से बाहर कोई तत्व नहीं बचता। इसलिए पूरक \(\varnothing\) होता है।