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Find the Specified Domain $( f + g ) ( x )$

Question 420

Multiple Choice

Find the specified domain.
-Find the domain of $( f + g ) ( x )$ when $f ( x ) = \sqrt { 3 x - 9 }$ and $g ( x ) = \frac { 1 } { x }$

A) $[ 3 , \infty )$
B) $[ - 3 , \infty )$
C) $[ - 3,0 ) \cup ( 0 , \infty )$
D) $( \infty , 0 ) \cup ( 0 , \infty )$

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