Find the derivative of y with respect to the appropriate variable.
-$$y = \left( \theta ^ { 2 } + 9 \theta \right) \tanh ^ { - 1 } ( \theta + 8 )$$
A) $- \frac { \theta } { \theta + 7 }$
B) $( 2 \theta + 9 ) \tanh ^ { - 1 } ( \theta + 8 ) - \frac { \theta ^ { 2 } + 9 \theta } { 1 + ( \theta + 8 ) ^ { 2 } }$
C) $( 2 \theta + 9 ) \tanh ^ { - 1 } ( \theta + 8 ) - \frac { \theta } { \theta + 7 }$
D) $( 2 \theta + 9 ) - \frac { 1 } { \theta + 63 }$

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The Answer of Find the derivative of y with respect to the appropriate variable.
-$$y = \left( \theta ^ { 2 } + 9 \theta \right) \tanh ^ { - 1 } ( \theta + 8 )$$
A) $- \frac { \theta } { \theta + 7 }$
B) $( 2 \theta + 9 ) \tanh ^ { - 1 } ( \theta + 8 ) - \frac { \theta ^ { 2 } + 9 \theta } { 1 + ( \theta + 8 ) ^ { 2 } }$
C) $( 2 \theta + 9 ) \tanh ^ { - 1 } ( \theta + 8 ) - \frac { \theta } { \theta + 7 }$
D) $( 2 \theta + 9 ) - \frac { 1 } { \theta + 63 }$

Find the Derivative of Y with Respect to the Appropriate y=(θ2+9θ)tanh⁡−1(θ+8)y = \left( \theta ^ { 2 } + 9 \theta \right) \tanh ^ { - 1 } ( \theta + 8 )y=(θ2+9θ)tanh−1(θ+8)

Find the Derivative of Y with Respect to the Appropriate $y = \left( \theta ^ { 2 } + 9 \theta \right) \tanh ^ { - 1 } ( \theta + 8 )$