(a) Find the slope of the curve y=x³-7x at the given point P(1,-6) by finding the limiting value of the slope of the secants through P. (b) Find an equation of the tangent line to the curve at P(1,-6). (a) The slope of the curve at P(1,-6) is (b) The equation of the tangent line to the curve at P(1, - 6) is y= ...

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