$$\text { Find the value of } ( f \circ g ) ^ { \prime } \text { at the given value of } x \text {. }$$

question 545

Multiple Choice

$$\text { Find the value of } ( f \circ g ) ^ { \prime } \text { at the given value of } x \text {. }$$
- $$f ( u ) = \frac { u - 1 } { u + 1 } , u = g ( x ) = \sqrt { x } , x = 49$$

• A) \(\frac { 1 } { 49 }\)
• B) \(\frac { 1 } { 7 }\)
• C) \(\frac { 1 } { 448 }\)
• D) \(\frac { 1 } { 64 }\)

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