यदि (n(U)=20) और (n(A)=7) है, तो (n\(A^c\)) कितना होगा?

If (n(U)=20) and (n(A)=7), what is (n\(A^c\))?

Explanation opens after your attempt
Correct Answer

A. (13)

Step 1

Concept

If \(A\subseteq U\), then (n\(A^c\)=n(U)-n(A)). Therefore (20-7=13).

Step 2

Why this answer is correct

The correct answer is A. (13). If \(A\subseteq U\), then (n\(A^c\)=n(U)-n(A)). Therefore (20-7=13).

Step 3

Exam Tip

यदि \(A\subseteq U\) है, तो (n\(A^c\)=n(U)-n(A)) होता है। इसलिए (20-7=13) होगा।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि (n(U)=20) और (n(A)=7) है, तो (n\(A^c\)) कितना होगा? / If (n(U)=20) and (n(A)=7), what is (n\(A^c\))?

Correct Answer: A. (13). Explanation: यदि \(A\subseteq U\) है, तो (n\(A^c\)=n(U)-n(A)) होता है। इसलिए (20-7=13) होगा। / If \(A\subseteq U\), then (n\(A^c\)=n(U)-n(A)). Therefore (20-7=13).

Which concept should I revise for this Mathematics MCQ?

If \(A\subseteq U\), then (n\(A^c\)=n(U)-n(A)). Therefore (20-7=13).

What exam hint can help solve this Mathematics question?

यदि \(A\subseteq U\) है, तो (n\(A^c\)=n(U)-n(A)) होता है। इसलिए (20-7=13) होगा।