A curve is defined by f(x)=x³ - 6x² -15x -1. Find: (i) the derivative of f(x) with respect to x; (ii) the gradient of the curve at the point where x=1; (iii) the maximum and the minimum points.?
daniel.anaye.587
29 Mar, 2021
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Jerrycurl12
5 years ago
f(x)=x³-6x²-15x-1
i) dyldx=3x²-12x-15
ii) given x=1
dy/dx=3(1)²-12(1)-15
=3-12-15
=-24
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