Find the Length Of $y = \ln ( \sin x ) \text { for } \frac { \pi } { 6 } \leq x \leq \frac { \pi } { 3 }$

Essay

Find the length of $y = \ln ( \sin x ) \text { for } \frac { \pi } { 6 } \leq x \leq \frac { \pi } { 3 }$