Find the Length of the Curve $y=2 \ln \left(\sin \frac{x}{2}\right), \frac{\pi}{5} \leq x \leq \pi$

question 67

Multiple Choice

Find the length of the curve. $y=2 \ln \left(\sin \frac{x}{2}\right) , \frac{\pi}{5} \leq x \leq \pi$

• A) \(\ln (2+\sqrt{5})\)
• B) \(\ln (\sqrt{5})\)
• C) \(\ln (5)\)
• D) \(\ln (2 \sqrt{5})\)
• E) None of these

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