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Which option can form a quadratic polynomial with rational coefficients?

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Answer and explanation

Correct answer: Zeroes (6+\sqrt{5}) and (6-\sqrt{5})

With rational coefficients, irrational parts occur in conjugate pairs. Only (6+\sqrt{5}) and (6-\sqrt{5}) have both rational sum and rational product.

Related tags

Rational-CoefficientsConjugate-PairConcept

Frequently asked questions

What is the correct answer to this question?

Zeroes (6+\sqrt{5}) and (6-\sqrt{5})

Why is this the correct answer?

With rational coefficients, irrational parts occur in conjugate pairs. Only (6+\sqrt{5}) and (6-\sqrt{5}) have both rational sum and rational product.

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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