यदि \(A\cup B=A\) है, तो (B) के बारे में सही कथन क्या है?

If \(A\cup B=A\), which statement about (B) is correct?

Explanation opens after your attempt
Correct Answer

A. \(B\subseteq A\)

Step 1

Concept

Adding (B) to (A) by union does not change (A), so every element of (B) is in (A). Thus \(B\subseteq A\).

Step 2

Why this answer is correct

The correct answer is A. \(B\subseteq A\). Adding (B) to (A) by union does not change (A), so every element of (B) is in (A). Thus \(B\subseteq A\).

Step 3

Exam Tip

संघ में (B) जोड़ने पर (A) नहीं बदलता, इसलिए (B) का हर तत्व (A) में है। अतः \(B\subseteq A\)।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(A\cup B=A\) है, तो (B) के बारे में सही कथन क्या है? / If \(A\cup B=A\), which statement about (B) is correct?

Correct Answer: A. \(B\subseteq A\). Explanation: संघ में (B) जोड़ने पर (A) नहीं बदलता, इसलिए (B) का हर तत्व (A) में है। अतः \(B\subseteq A\)। / Adding (B) to (A) by union does not change (A), so every element of (B) is in (A). Thus \(B\subseteq A\).

Which concept should I revise for this Mathematics MCQ?

Adding (B) to (A) by union does not change (A), so every element of (B) is in (A). Thus \(B\subseteq A\).

What exam hint can help solve this Mathematics question?

संघ में (B) जोड़ने पर (A) नहीं बदलता, इसलिए (B) का हर तत्व (A) में है। अतः \(B\subseteq A\)।