यदि (n(A-B)=23) और (n(B-A)=31) है, तो (n\(A\triangle B\)) कितना होगा?

If (n(A-B)=23) and (n(B-A)=31), what is (n\(A\triangle B\))?

Explanation opens after your attempt
Correct Answer

A. (54)

Step 1

Concept

The symmetric difference \(A\triangle B\) is the sum of the two separate regions (A-B) and (B-A). Hence (23+31=54).

Step 2

Why this answer is correct

The correct answer is A. (54). The symmetric difference \(A\triangle B\) is the sum of the two separate regions (A-B) and (B-A). Hence (23+31=54).

Step 3

Exam Tip

सममित अंतर \(A\triangle B\) दो अलग क्षेत्रों (A-B) और (B-A) का योग है। इसलिए (23+31=54)।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(A-B)=23) और (n(B-A)=31) है, तो (n\(A\triangle B\)) कितना होगा? / If (n(A-B)=23) and (n(B-A)=31), what is (n\(A\triangle B\))?

Correct Answer: A. (54). Explanation: सममित अंतर \(A\triangle B\) दो अलग क्षेत्रों (A-B) और (B-A) का योग है। इसलिए (23+31=54)। / The symmetric difference \(A\triangle B\) is the sum of the two separate regions (A-B) and (B-A). Hence (23+31=54).

Which concept should I revise for this Mathematics MCQ?

The symmetric difference \(A\triangle B\) is the sum of the two separate regions (A-B) and (B-A). Hence (23+31=54).

What exam hint can help solve this Mathematics question?

सममित अंतर \(A\triangle B\) दो अलग क्षेत्रों (A-B) और (B-A) का योग है। इसलिए (23+31=54)।