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