Medium Mathematics Polynomials Class 10 Level 25

यदि \(u=5+\sqrt{2}\) और \(v=5-\sqrt{2}\) हैं तो (uv) का मान क्या है?

If \(u=5+\sqrt{2}\) and \(v=5-\sqrt{2}\), what is the value of (uv)?

Explanation opens after your attempt
Correct Answer

A. (23)

Step 1

Concept

(\(5+\sqrt{2}\)\(5-\sqrt{2}\)=25-2=23). In conjugate multiplication the irrational part cancels.

Step 2

Why this answer is correct

The correct answer is A. (23). (\(5+\sqrt{2}\)\(5-\sqrt{2}\)=25-2=23). In conjugate multiplication the irrational part cancels.

Step 3

Exam Tip

(\(5+\sqrt{2}\)\(5-\sqrt{2}\)=25-2=23) है। संयुग्मी गुणन में अपरिमेय भाग हट जाता है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(u=5+\sqrt{2}\) और \(v=5-\sqrt{2}\) हैं तो (uv) का मान क्या है? / If \(u=5+\sqrt{2}\) and \(v=5-\sqrt{2}\), what is the value of (uv)?

Correct Answer: A. (23). Explanation: (\(5+\sqrt{2}\)\(5-\sqrt{2}\)=25-2=23) है। संयुग्मी गुणन में अपरिमेय भाग हट जाता है। / (\(5+\sqrt{2}\)\(5-\sqrt{2}\)=25-2=23). In conjugate multiplication the irrational part cancels.

Which concept should I revise for this Mathematics MCQ?

(\(5+\sqrt{2}\)\(5-\sqrt{2}\)=25-2=23). In conjugate multiplication the irrational part cancels.

What exam hint can help solve this Mathematics question?

(\(5+\sqrt{2}\)\(5-\sqrt{2}\)=25-2=23) है। संयुग्मी गुणन में अपरिमेय भाग हट जाता है।

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