यदि \(A={x:x^2-7x+12=0}\) और \(B={x:x^2-9x+20=0}\), तो \(A\cup B\) क्या है?

If \(A={x:x^2-7x+12=0}\) and \(B={x:x^2-9x+20=0}\), what is \(A\cup B\)?

Explanation opens after your attempt
Correct Answer

A. ( {3,4,5} )

Step 1

Concept

\(A=\{3,4\}\) and \(B=\{4,5\}\). In a union, the repeated element (4) is written only once.

Step 2

Why this answer is correct

The correct answer is A. ( {3,4,5} ). \(A=\{3,4\}\) and \(B=\{4,5\}\). In a union, the repeated element (4) is written only once.

Step 3

Exam Tip

\(A=\{3,4\}\) और \(B=\{4,5\}\) है। संघ में दोहराया अवयव (4) केवल एक बार लिखा जाता है।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(A={x:x^2-7x+12=0}\) और \(B={x:x^2-9x+20=0}\), तो \(A\cup B\) क्या है? / If \(A={x:x^2-7x+12=0}\) and \(B={x:x^2-9x+20=0}\), what is \(A\cup B\)?

Correct Answer: A. ( {3,4,5} ). Explanation: \(A=\{3,4\}\) और \(B=\{4,5\}\) है। संघ में दोहराया अवयव (4) केवल एक बार लिखा जाता है। / \(A=\{3,4\}\) and \(B=\{4,5\}\). In a union, the repeated element (4) is written only once.

Which concept should I revise for this Mathematics MCQ?

\(A=\{3,4\}\) and \(B=\{4,5\}\). In a union, the repeated element (4) is written only once.

What exam hint can help solve this Mathematics question?

\(A=\{3,4\}\) और \(B=\{4,5\}\) है। संघ में दोहराया अवयव (4) केवल एक बार लिखा जाता है।