Question: (a) The curve y = x/(1 + x 2 ) is called a serpentine. Find an equation of the tangent line to this curve at

(a) The curve y = x/(1 + x²) is called a serpentine. Find an equation of the tangent line to this curve at the point (3, 0.3).
(b) Illustrate part (a) by graphing the curve and the tangent line on the same screen.

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