यदि \(A\cap B=\varnothing\), तो (\(A\cup B\)-A) किसके बराबर है?

If \(A\cap B=\varnothing\), then (\(A\cup B\)-A) is equal to what?

Explanation opens after your attempt
Correct Answer

A. (B)

Step 1

Concept

When the sets are disjoint, removing (A) from \(A\cup B\) leaves the whole of (B). Hence the answer is (B).

Step 2

Why this answer is correct

The correct answer is A. (B). When the sets are disjoint, removing (A) from \(A\cup B\) leaves the whole of (B). Hence the answer is (B).

Step 3

Exam Tip

असंबद्ध होने पर \(A\cup B\) से (A) हटाने पर पूरा (B) बचता है। इसलिए उत्तर (B) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A\cap B=\varnothing\), तो (\(A\cup B\)-A) किसके बराबर है? / If \(A\cap B=\varnothing\), then (\(A\cup B\)-A) is equal to what?

Correct Answer: A. (B). Explanation: असंबद्ध होने पर \(A\cup B\) से (A) हटाने पर पूरा (B) बचता है। इसलिए उत्तर (B) है। / When the sets are disjoint, removing (A) from \(A\cup B\) leaves the whole of (B). Hence the answer is (B).

Which concept should I revise for this Mathematics MCQ?

When the sets are disjoint, removing (A) from \(A\cup B\) leaves the whole of (B). Hence the answer is (B).

What exam hint can help solve this Mathematics question?

असंबद्ध होने पर \(A\cup B\) से (A) हटाने पर पूरा (B) बचता है। इसलिए उत्तर (B) है।