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The equation of a curve is `y= 2x^3 -6x +5`
a).Determine
i).The gradient function of the curve.
ii).The coordinates of two stationary points of the curve.
b).Identify which is a maxima and which is a minima.
c).Sketch the curve `y = 2x^3 -6x+5`.
d).Find the equation of the tangent to the curve at the point (2, 9) in the form y =mx +c.