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 Find the derivative of the function f(x)=ex4ex+4. Simplify your answer. \text { Find the derivative of the function } f ( x ) = \frac { e ^ { x } - 4 } { e ^ { x } + 4 } \text {. Simplify your answer. }

Question 17

Multiple Choice

 Find the derivative of the function f(x) =ex4ex+4. Simplify your answer. \text { Find the derivative of the function } f ( x ) = \frac { e ^ { x } - 4 } { e ^ { x } + 4 } \text {. Simplify your answer. }


A) 2e2x(ex+4) 2\frac { 2 e ^ { 2 x } } { \left( e ^ { x } + 4 \right) ^ { 2 } }
B) 8ex(ex+4) 2\frac { - 8 e ^ { x } } { \left( e ^ { x } + 4 \right) ^ { 2 } }
C) 8ex(ex+4) 2\frac { 8 e ^ { x } } { \left( e ^ { x } + 4 \right) ^ { 2 } }
D) 2e2x+8ex(ex+4) 2\frac { 2 e ^ { 2 x } + 8 e ^ { x } } { \left( e ^ { x } + 4 \right) ^ { 2 } }
E) 1(ex+4) 2\frac { 1 } { \left( e ^ { x } + 4 \right) ^ { 2 } }

Correct Answer:

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