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

question 12

Multiple Choice

$$\text { Find the value of } ( f \circ g ) ^ { \prime } \text { at the given value of } x \text {. }$$
- $$f ( u ) = \tan \frac { \pi u } { 2 } , u = g ( x ) = x ^ { 2 } , x = 4$$

• A) 8
• B) \(- 4 \pi\)
• C) \(4 \pi\)
• D) \(- 16 \pi\)