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Let f(x)=exxf ( x ) = \frac { e ^ { x } } { x }

Question 58

Multiple Choice

Let f(x) =exxf ( x ) = \frac { e ^ { x } } { x } Assuming x0,f(x) x \neq 0 , f ^ { \prime } ( x ) is


A) exe ^ { x }
B) exx2- \frac { e ^ { x } } { x ^ { 2 } }
C) ex(1x) x2\frac { e ^ { x } ( 1 - x ) } { x ^ { 2 } }
D) ex(x1) x2\frac { e ^ { x } ( x - 1 ) } { x ^ { 2 } }
E) ex1(x1) x\frac { e ^ { x - 1 } ( x - 1 ) } { x }

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