Solved

Find the Domain Of $f$ $f ( x ) = \sqrt { x ^ { 2 } - 9 }$

Question 23

Multiple Choice

Find the domain of $f$ . $f ( x ) = \sqrt { x ^ { 2 } - 9 }$

A) $[ 3 , \infty )$
B) $( - \infty , - 3 ] \cup [ 3 , \infty )$
C) $( - \infty , - 3 ) \cup ( 3 , \infty )$
D) $( - 3,3 )$
E) $[ 9 , \infty )$

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