Find $\frac { d y } { d x }$ (A) $y = \ln \sqrt { \frac { 4 x - 7 } { x ^ { 2 } + 2 x } }$

Essay

Find $\frac { d y } { d x }$ .(a) $y = \ln \sqrt { \frac { 4 x - 7 } { x ^ { 2 } + 2 x } }$ (b) $y = ( \ln ( \sec x ) ) ^ { 4 }$ (c) $y = \left( 1 + \frac { 1 } { x } \right) ^ { 2 x }$