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Find fgf \circ g f(x)=x+3g(x)=4x29f ( x ) = x + 3 \quad g ( x ) = \frac { 4 } { x ^ { 2 } - 9 }

Question 38

Multiple Choice

Find fgf \circ g .
f(x) =x+3g(x) =4x29f ( x ) = x + 3 \quad g ( x ) = \frac { 4 } { x ^ { 2 } - 9 }


A) (fg) (x) =4x2( f \circ g ) ( x ) = \frac { 4 } { x ^ { 2 } }
B) (fg) (x) =4x2+6x( f \circ g ) ( x ) = \frac { 4 } { x ^ { 2 } + 6 x }
C) (fg) (x) =3x2+1x29( f \circ g ) ( x ) = \frac { 3 x ^ { 2 } + 1 } { x ^ { 2 } - 9 }
D) (fg) (x) =7x29( f \circ g ) ( x ) = \frac { 7 } { x ^ { 2 } - 9 }
E) (fg) (x) =3x223x29( f \circ g ) ( x ) = \frac { 3 x ^ { 2 } - 23 } { x ^ { 2 } - 9 }

Correct Answer:

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