Expert Mathematics Polynomials Class 10 Level 26

यदि \(\alpha=4+\sqrt{15}\) और \(\beta=4-\sqrt{15}\), तो \(\alpha+\beta+\alpha\beta\) क्या है?

If \(\alpha=4+\sqrt{15}\) and \(\beta=4-\sqrt{15}\), what is \(\alpha+\beta+\alpha\beta\)?

Explanation opens after your attempt
Correct Answer

A. (9)

Step 1

Concept

\(\alpha+\beta=8\) and \(\alpha\beta=16-15=1\), so the total is (9). In exams find the sum and product separately.

Step 2

Why this answer is correct

The correct answer is A. (9). \(\alpha+\beta=8\) and \(\alpha\beta=16-15=1\), so the total is (9). In exams find the sum and product separately.

Step 3

Exam Tip

\(\alpha+\beta=8\) और \(\alpha\beta=16-15=1\), इसलिए कुल (9) है। परीक्षा में योग और गुणनफल अलग-अलग निकालें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(\alpha=4+\sqrt{15}\) और \(\beta=4-\sqrt{15}\), तो \(\alpha+\beta+\alpha\beta\) क्या है? / If \(\alpha=4+\sqrt{15}\) and \(\beta=4-\sqrt{15}\), what is \(\alpha+\beta+\alpha\beta\)?

Correct Answer: A. (9). Explanation: \(\alpha+\beta=8\) और \(\alpha\beta=16-15=1\), इसलिए कुल (9) है। परीक्षा में योग और गुणनफल अलग-अलग निकालें। / \(\alpha+\beta=8\) and \(\alpha\beta=16-15=1\), so the total is (9). In exams find the sum and product separately.

Which concept should I revise for this Mathematics MCQ?

\(\alpha+\beta=8\) and \(\alpha\beta=16-15=1\), so the total is (9). In exams find the sum and product separately.

What exam hint can help solve this Mathematics question?

\(\alpha+\beta=8\) और \(\alpha\beta=16-15=1\), इसलिए कुल (9) है। परीक्षा में योग और गुणनफल अलग-अलग निकालें।

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