Prove that if all n roots of a polynomial P(x) with real coefficients are real, then the same is true for all its deriva
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Prove that if all n roots of a polynomial P(x) with real coefficients are real, then the same is true for all its deriva
Prove that if all n roots of a polynomial P(x) with real coefficients are real, then the same is true for all its derivatives P′(x),P′′(x),…
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