CalculusHardApplications of Integration ShareApplications of Integration · Hard problemFind the exact arc length of y=ln(cosx)y=\ln(\cos x)y=ln(cosx) on [0,π3]\left[0,\tfrac{\pi}{3}\right][0,3π].Aln(4+3)\ln(4+\sqrt{3})ln(4+3)Bln(2+3)\ln(2+\sqrt{3})ln(2+3)C−ln(2+3)-\ln(2+\sqrt{3})−ln(2+3)Dln(2+4)\ln(2+\sqrt{4})ln(2+4)Check Show answer Walk through it step by step Practice more like this Review this concept