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- Show that the tangent lines to the graph of y = (ex - e-x) / (ex + e-x) atx = 1 and x = -1 are parallel.Find the equations of the tangent and the normal at the point indicated. y = x2 - 2x at its points of intersections with the line y = 3Find the equations of the tangent and the normal at the point indicated. y = 2 + 4x - x2 at x= -1
- What is the slope of the tangent line to the graph of y = x^2 + 1 at the point (0, 1)?Approximate the length of the curve using n secant lines for n = 2; n = 4.y=ln x, 1>=x>=3The slope of the tangent line is 0. Is the slope of the normal line is undefined? If yes, how can I find the normal line equation?