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Let f(x)=tan1(x)f ( x ) = \tan ^ { - 1 } ( \sqrt { x } )

Question 28

Multiple Choice

Let f(x) =tan1(x) f ( x ) = \tan ^ { - 1 } ( \sqrt { x } ) Then f(x) f ^ { \prime } ( x ) is


A) 12x(1+x2) \frac { 1 } { 2 \sqrt { x } \left( 1 + x ^ { 2 } \right) }
B) 2x(1+x2) \frac { 2 } { \sqrt { x } \left( 1 + x ^ { 2 } \right) }
C) 12x(1x2) \frac { 1 } { 2 \sqrt { x } \left( 1 - x ^ { 2 } \right) }
D) 12x(1+x) \frac { 1 } { 2 \sqrt { x } ( 1 + x ) }
E) 12x(1x) \frac { 1 } { 2 \sqrt { x } ( 1 - x ) }

Correct Answer:

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