Find equation of tangent line to the function at given point. g(x) = 1/rad(x) ; (1,1)
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Originally Posted by rod789 Find equation of tangent line to the function at given point. g(x) = 1/rad(x) ; (1,1) *sigh* I assume rad(x) means $\displaystyle \sqrt{x}$. Use the standard model y - y1 = m(x - x1). Substitute (1, 1) for (x1, y1) and m = g'(1). Note: $\displaystyle \frac{1}{\sqrt{x}} = \frac{1}{x^{1/2}} = x^{-1/2}$.
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