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Sketch 20x--x^2-2x^3

Find roots, stationary points, classify, sketch.

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Answered by Tom F. • Maths tutor

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4. The curve C has equation 4x^2 – y3 – 4xy + 2y = 0. P has coordinates (–2, 4) lies on C. (a) Find the exact value of d d y x at the point P. (6) The normal to C at P meets the y-axis at the point A. (b) Find the y coordinate of A

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