Given $f ( x ) = 2 + x ^ { 2 }$

question 87

Essay

Given $f ( x ) = 2 + x ^ { 2 }$
and $g ( x ) = \sqrt { x - 1 }$
, find $( f \circ g ) ( 2 )$
, $( f \circ f ) ( 2 )$
.

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