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Let f(x)=3x2+1f ( x ) = \frac { 3 } { x ^ { 2 } + 1 }

Question 84

Multiple Choice

Let f(x) =3x2+1f ( x ) = \frac { 3 } { x ^ { 2 } + 1 } Then f(x) f ^ { \prime } ( x ) is


A) 6xx2+1- \frac { 6 x } { x ^ { 2 } + 1 }
B) 6xx2+1\frac { 6 x } { x ^ { 2 } + 1 }
C) 6x(x2+1) 2- \frac { 6 x } { \left( x ^ { 2 } + 1 \right) ^ { 2 } }
D) 6x(x2+1) 2\frac { 6 x } { \left( x ^ { 2 } + 1 \right) ^ { 2 } }
E) 3x(x2+1) 2- \frac { 3 x } { \left( x ^ { 2 } + 1 \right) ^ { 2 } }

Correct Answer:

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