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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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differentiate y=8x^3 - 4*x^(1/2) + (3x^2 + 2)/x

Find the equation of the tangent to the curve y^3 - 4x^2 - 3xy + 25 = 0 at the point (2,-3).

A and B have coordinates (2,3) and (5,15), respectively. Together they form line l. Find the equation for the line r that goes through C(7,-2) and is perpendicular to l. Give the answer in the format of y=mx+b

The curve A (y = x3 – x2 + x -1) is perpendicular to the straight-line B at the point P (5, 2). If A and B intersect at P, what is the equation of B? Also, find any stationary points of the curve A.

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