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Let f(x)=3xexf ( x ) = 3 x e ^ { x }

Question 17

Multiple Choice

Let f(x) =3xexf ( x ) = 3 x e ^ { x } Then f(x) f ^ { \prime } ( x ) is


A) 3ex3 e ^ { x }
B) 3ex+3x2ex13 e ^ { x } + 3 x ^ { 2 } e ^ { x - 1 }
C) 3xex13 x e ^ { x - 1 }
D) 3ex(x+2) 3 e ^ { x } ( x + 2 )
E) 3ex(x+1) 3 e ^ { x } ( x + 1 )

Correct Answer:

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