यदि \(X=\{1,5\}\) और \(Y=\{3,9\}\) हैं, तो कौन सा युग्म \(X\times Y\) में नहीं है?

If \(X=\{1,5\}\) and \(Y=\{3,9\}\), which pair is not in \(X\times Y\)?

Explanation opens after your attempt
Correct Answer

D. ((3,1))

Step 1

Concept

In ((3,1)), the first component is (3), but \(3\notin X\). Check the first and second positions separately for membership.

Step 2

Why this answer is correct

The correct answer is D. ((3,1)). In ((3,1)), the first component is (3), but \(3\notin X\). Check the first and second positions separately for membership.

Step 3

Exam Tip

((3,1)) में पहला घटक (3) है, लेकिन \(3\notin X\)। सदस्यता जांचते समय पहला और दूसरा स्थान अलग-अलग देखें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(X=\{1,5\}\) और \(Y=\{3,9\}\) हैं, तो कौन सा युग्म \(X\times Y\) में नहीं है? / If \(X=\{1,5\}\) and \(Y=\{3,9\}\), which pair is not in \(X\times Y\)?

Correct Answer: D. ((3,1)). Explanation: ((3,1)) में पहला घटक (3) है, लेकिन \(3\notin X\)। सदस्यता जांचते समय पहला और दूसरा स्थान अलग-अलग देखें। / In ((3,1)), the first component is (3), but \(3\notin X\). Check the first and second positions separately for membership.

Which concept should I revise for this Mathematics MCQ?

In ((3,1)), the first component is (3), but \(3\notin X\). Check the first and second positions separately for membership.

What exam hint can help solve this Mathematics question?

((3,1)) में पहला घटक (3) है, लेकिन \(3\notin X\)। सदस्यता जांचते समय पहला और दूसरा स्थान अलग-अलग देखें।