यदि \(U={1,2,3,\ldots,12}\) और \(A=\{3,6,9,12\}\) है, तो \(A^c\cup{6,12}\) में कितने तत्व होंगे?

If \(U={1,2,3,\ldots,12}\) and \(A=\{3,6,9,12\}\), how many elements are in \(A^c\cup{6,12}\)?

Explanation opens after your attempt
Correct Answer

A. (10)

Step 1

Concept

\(A^c\) has (8) elements, and (6,12) are not in it. Adding these two new elements gives (10) elements.

Step 2

Why this answer is correct

The correct answer is A. (10). \(A^c\) has (8) elements, and (6,12) are not in it. Adding these two new elements gives (10) elements.

Step 3

Exam Tip

\(A^c\) में (8) तत्व हैं और (6,12) इसमें नहीं हैं। इसलिए दो नए तत्व जोड़ने पर कुल (10) तत्व होंगे।

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Mathematics Answer, Explanation and Revision Hints

यदि \(U={1,2,3,\ldots,12}\) और \(A=\{3,6,9,12\}\) है, तो \(A^c\cup{6,12}\) में कितने तत्व होंगे? / If \(U={1,2,3,\ldots,12}\) and \(A=\{3,6,9,12\}\), how many elements are in \(A^c\cup{6,12}\)?

Correct Answer: A. (10). Explanation: \(A^c\) में (8) तत्व हैं और (6,12) इसमें नहीं हैं। इसलिए दो नए तत्व जोड़ने पर कुल (10) तत्व होंगे। / \(A^c\) has (8) elements, and (6,12) are not in it. Adding these two new elements gives (10) elements.

Which concept should I revise for this Mathematics MCQ?

\(A^c\) has (8) elements, and (6,12) are not in it. Adding these two new elements gives (10) elements.

What exam hint can help solve this Mathematics question?

\(A^c\) में (8) तत्व हैं और (6,12) इसमें नहीं हैं। इसलिए दो नए तत्व जोड़ने पर कुल (10) तत्व होंगे।