Mathematics

Mathematics

Problem

The answers are in Chapter 24. 2. Find dydx\frac{d y}{d x} if y=ln⁡(x2−11x2+9)y=\ln \left(\frac{\sqrt{x^{2}-11}}{x^{2}+9}\right). (A) xx2−11−2xx2+9\frac{x}{x^{2}-11}-\frac{2 x}{x^{2}+9} (B) 2xx2−11−2xx2+9\frac{2 x}{\sqrt{x^{2}-11}}-\frac{2 x}{x^{2}+9} (C) 12x2+9x2−11\frac{1}{2} \frac{x^{2}+9}{x^{2}-11} (D) x2+9x2−11\frac{x^{2}+9}{\sqrt{x^{2}-11}} (A) xx2−11−2xx2+9\frac{x}{x^{2}-11}-\frac{2 x}{x^{2}+9} (B) 2xx2−11−2xx2+9\frac{2 x}{\sqrt{x^{2}-11}}-\frac{2 x}{x^{2}+9} (C) 12x2+9x2−11\frac{1}{2} \frac{x^{2}+9}{x^{2}-11} (D) x2+9x2−11\frac{x^{2}+9}{\sqrt{x^{2}-11}}

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