\(7+\sqrt{13}\) और \(7-\sqrt{13}\) का गुणनफल क्या है?

What is the product of \(7+\sqrt{13}\) and \(7-\sqrt{13}\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. (36)

Step 1

Concept

The product is (72-\(\sqrt{13}\)2=49-13=36). Use \(a^2-b^2\) for conjugate multiplication.

Step 2

Why this answer is correct

The correct answer is B. (36). The product is (72-\(\sqrt{13}\)2=49-13=36). Use \(a^2-b^2\) for conjugate multiplication.

Step 3

Exam Tip

गुणनफल (72-\(\sqrt{13}\)2=49-13=36) है। संयुग्मी गुणन में \(a^2-b^2\) लगाएं।

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Mathematics Answer, Explanation and Revision Hints

\(7+\sqrt{13}\) और \(7-\sqrt{13}\) का गुणनफल क्या है? / What is the product of \(7+\sqrt{13}\) and \(7-\sqrt{13}\)?

Correct Answer: B. (36). Explanation: गुणनफल (72-\(\sqrt{13}\)2=49-13=36) है। संयुग्मी गुणन में \(a^2-b^2\) लगाएं। / The product is (72-\(\sqrt{13}\)2=49-13=36). Use \(a^2-b^2\) for conjugate multiplication.

Which concept should I revise for this Mathematics MCQ?

The product is (72-\(\sqrt{13}\)2=49-13=36). Use \(a^2-b^2\) for conjugate multiplication.

What exam hint can help solve this Mathematics question?

गुणनफल (72-\(\sqrt{13}\)2=49-13=36) है। संयुग्मी गुणन में \(a^2-b^2\) लगाएं।