यदि \(X=\{1,3,5,7\}\) और \(Y=\{3,7,9\}\) हैं, तो (Y-X) ज्ञात कीजिए।

If \(X=\{1,3,5,7\}\) and \(Y=\{3,7,9\}\), find (Y-X).

Explanation opens after your attempt
Correct Answer

A. ( {9} )

Step 1

Concept

(Y-X) contains elements of (Y) that are not in (X). Here only (9) satisfies this.

Step 2

Why this answer is correct

The correct answer is A. ( {9} ). (Y-X) contains elements of (Y) that are not in (X). Here only (9) satisfies this.

Step 3

Exam Tip

(Y-X) में (Y) के वे अवयव हैं जो (X) में नहीं हैं। यहां (9) ही ऐसा अवयव है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(X=\{1,3,5,7\}\) और \(Y=\{3,7,9\}\) हैं, तो (Y-X) ज्ञात कीजिए। / If \(X=\{1,3,5,7\}\) and \(Y=\{3,7,9\}\), find (Y-X).

Correct Answer: A. ( {9} ). Explanation: (Y-X) में (Y) के वे अवयव हैं जो (X) में नहीं हैं। यहां (9) ही ऐसा अवयव है। / (Y-X) contains elements of (Y) that are not in (X). Here only (9) satisfies this.

Which concept should I revise for this Mathematics MCQ?

(Y-X) contains elements of (Y) that are not in (X). Here only (9) satisfies this.

What exam hint can help solve this Mathematics question?

(Y-X) में (Y) के वे अवयव हैं जो (X) में नहीं हैं। यहां (9) ही ऐसा अवयव है।