यदि \(A=\{2,4,6,8\}\) और \(B=\{1,3\}\) हैं, तो \(A\times B\) में पहले घटकों का समुच्चय क्या है?

If \(A=\{2,4,6,8\}\) and \(B=\{1,3\}\), what is the set of first components in \(A\times B\)?

Explanation opens after your attempt
Correct Answer

B. ({2,4,6,8})

Step 1

Concept

Since (B) is non-empty, every element of (A) appears as a first component. Therefore the set of first components is (A).

Step 2

Why this answer is correct

The correct answer is B. ({2,4,6,8}). Since (B) is non-empty, every element of (A) appears as a first component. Therefore the set of first components is (A).

Step 3

Exam Tip

क्योंकि (B) अरिक्त है, (A) का हर अवयव पहले घटक के रूप में आएगा। इसलिए पहले घटकों का समुच्चय (A) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{2,4,6,8\}\) और \(B=\{1,3\}\) हैं, तो \(A\times B\) में पहले घटकों का समुच्चय क्या है? / If \(A=\{2,4,6,8\}\) and \(B=\{1,3\}\), what is the set of first components in \(A\times B\)?

Correct Answer: B. ({2,4,6,8}). Explanation: क्योंकि (B) अरिक्त है, (A) का हर अवयव पहले घटक के रूप में आएगा। इसलिए पहले घटकों का समुच्चय (A) है। / Since (B) is non-empty, every element of (A) appears as a first component. Therefore the set of first components is (A).

Which concept should I revise for this Mathematics MCQ?

Since (B) is non-empty, every element of (A) appears as a first component. Therefore the set of first components is (A).

What exam hint can help solve this Mathematics question?

क्योंकि (B) अरिक्त है, (A) का हर अवयव पहले घटक के रूप में आएगा। इसलिए पहले घटकों का समुच्चय (A) है।