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Discrimination of the Roots of a Cubic Equation by Elementary Algebra
Published online by Cambridge University Press: 31 October 2008
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The following note shows how the conditions for the reality or equality of the roots of a cubic can be obtained from the similar conditions for a quadratic. The method does not involve the use of the calculus or the properties of turning points, nor of the imaginary cube roots of unity.
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- Copyright © Edinburgh Mathematical Society 1915
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