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Evaluate the Derivative f′(3)f ^ { \prime } ( 3 )

Question 249

Multiple Choice

Evaluate the derivative.
- f′(3) f ^ { \prime } ( 3 ) if f′(x) =(x2−5) (4) −(2x) (4x) (x2−5) 2f ^ { \prime } ( x ) = \frac { \left( x ^ { 2 } - 5 \right) ( 4 ) - ( 2 x ) ( 4 x ) } { \left( x ^ { 2 } - 5 \right) ^ { 2 } }


A) 49\frac { 4 } { 9 }
B) −1- 1
C) −2- 2
D) −72- \frac { 7 } { 2 }

Correct Answer:

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