Hard Mathematics Polynomials Class 10 Level 28

यदि \(\alpha=\sqrt{5}+2\) और \(\beta=\sqrt{5}-2\), तो \(\alpha\beta\) क्या है?

If \(\alpha=\sqrt{5}+2\) and \(\beta=\sqrt{5}-2\), what is \(\alpha\beta\)?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

(\alpha\beta=\(\sqrt{5}+2\)\(\sqrt{5}-2\)=5-4=1). Conjugate multiplication often gives a rational answer.

Step 2

Why this answer is correct

The correct answer is A. (1). (\alpha\beta=\(\sqrt{5}+2\)\(\sqrt{5}-2\)=5-4=1). Conjugate multiplication often gives a rational answer.

Step 3

Exam Tip

(\alpha\beta=\(\sqrt{5}+2\)\(\sqrt{5}-2\)=5-4=1) है। परीक्षा में संयुग्मी गुणन से परिमेय उत्तर मिलता है।

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(\alpha=\sqrt{5}+2\) और \(\beta=\sqrt{5}-2\), तो \(\alpha\beta\) क्या है? / If \(\alpha=\sqrt{5}+2\) and \(\beta=\sqrt{5}-2\), what is \(\alpha\beta\)?

Correct Answer: A. (1). Explanation: (\alpha\beta=\(\sqrt{5}+2\)\(\sqrt{5}-2\)=5-4=1) है। परीक्षा में संयुग्मी गुणन से परिमेय उत्तर मिलता है। / (\alpha\beta=\(\sqrt{5}+2\)\(\sqrt{5}-2\)=5-4=1). Conjugate multiplication often gives a rational answer.

Which concept should I revise for this Mathematics MCQ?

(\alpha\beta=\(\sqrt{5}+2\)\(\sqrt{5}-2\)=5-4=1). Conjugate multiplication often gives a rational answer.

What exam hint can help solve this Mathematics question?

(\alpha\beta=\(\sqrt{5}+2\)\(\sqrt{5}-2\)=5-4=1) है। परीक्षा में संयुग्मी गुणन से परिमेय उत्तर मिलता है।

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