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If (\alpha=4+\sqrt{15}) and (\beta=4-\sqrt{15}), what is (\alpha+\beta+\alpha\beta)?
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Answer and explanation
Correct answer: (9)
(\alpha+\beta=8) and (\alpha\beta=16-15=1), so the total is (9). In exams find the sum and product separately.
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What is the correct answer to this question?
(9)
Why is this the correct answer?
(\alpha+\beta=8) and (\alpha\beta=16-15=1), so the total is (9). In exams find the sum and product separately.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Irrational numbers and real numbers.
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