A-level Maths · Differentiation

Stationary points of a cubic

Differentiate a cubic, set dy/dx = 0 and solve for the x-coordinates of the stationary points.

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Question 1

The curve CC has equation y=2x3−9x2+12x−2y = 2x^{3} - 9x^{2} + 12x - 2. Find the xx-coordinates of the stationary points of CC. Give your answers separated by commas.

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Separate answers with commas, in any order, for example 2, -3 or x = 2 or x = -3.

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