यदि \(A=\{r,s\}\) और \(B=\{r,s,t,u\}\) है, तो \(A\cup B\) क्या होगा?

If \(A=\{r,s\}\) and \(B=\{r,s,t,u\}\), what is \(A\cup B\)?

Explanation opens after your attempt
Correct Answer

C. ( {r,s,t,u} )

Step 1

Concept

Since \(A\subseteq B\), \(A\cup B=B\). In subset cases, the larger set is the union.

Step 2

Why this answer is correct

The correct answer is C. ( {r,s,t,u} ). Since \(A\subseteq B\), \(A\cup B=B\). In subset cases, the larger set is the union.

Step 3

Exam Tip

क्योंकि \(A\subseteq B\), इसलिए \(A\cup B=B\) है। उपसमुच्चय वाले प्रश्नों में बड़ा समुच्चय संघ होता है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{r,s\}\) और \(B=\{r,s,t,u\}\) है, तो \(A\cup B\) क्या होगा? / If \(A=\{r,s\}\) and \(B=\{r,s,t,u\}\), what is \(A\cup B\)?

Correct Answer: C. ( {r,s,t,u} ). Explanation: क्योंकि \(A\subseteq B\), इसलिए \(A\cup B=B\) है। उपसमुच्चय वाले प्रश्नों में बड़ा समुच्चय संघ होता है। / Since \(A\subseteq B\), \(A\cup B=B\). In subset cases, the larger set is the union.

Which concept should I revise for this Mathematics MCQ?

Since \(A\subseteq B\), \(A\cup B=B\). In subset cases, the larger set is the union.

What exam hint can help solve this Mathematics question?

क्योंकि \(A\subseteq B\), इसलिए \(A\cup B=B\) है। उपसमुच्चय वाले प्रश्नों में बड़ा समुच्चय संघ होता है।