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If (\alpha=\sqrt{5}) and (\beta=-\sqrt{5}), which is the correct pair of (\alpha+\beta) and (\alpha\beta)?
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Answer and explanation
Correct answer: (0,-5)
(\sqrt{5}+(-\sqrt{5})=0) and (\sqrt{5}\cdot(-\sqrt{5})=-5). Opposite irrationals can have zero sum.
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What is the correct answer to this question?
(0,-5)
Why is this the correct answer?
(\sqrt{5}+(-\sqrt{5})=0) and (\sqrt{5}\cdot(-\sqrt{5})=-5). Opposite irrationals can have zero sum.
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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