Select the correct choices that complete the sentence below.

If two functions [tex]f[/tex] and [tex]g[/tex] are inverses, then [tex](f \circ g)(x) = x[/tex] and [tex](g \circ f)(x) = x[/tex].



Answer :

To determine the correct choices that complete the sentence, let's first understand the properties of inverse functions. If two functions [tex]\( f \)[/tex] and [tex]\( g \)[/tex] are inverses of each other, this means that when [tex]\( f \)[/tex] is applied to the output of [tex]\( g \)[/tex], or [tex]\( g \)[/tex] is applied to the output of [tex]\( f \)[/tex], the result is the original input [tex]\( x \)[/tex]. Formally, this relationship is expressed by:

[tex]\[ (f \circ g)(x) = f(g(x)) = x \][/tex]
[tex]\[ (g \circ f)(x) = g(f(x)) = x \][/tex]

Given the sentence:

"If two functions [tex]\( f \)[/tex] and [tex]\( g \)[/tex] are inverses, then [tex]\( (f \circ g)(x) = g(x) \)[/tex] and [tex]\(\square\)[/tex] [tex]\( g(x) = x\)[/tex]."

To match the second property stated above, the correct choice to fill in the blank is:

[tex]\[ (g \circ f)(x) \][/tex]

Thus, the completed sentence reads:

"If two functions [tex]\( f \)[/tex] and [tex]\( g \)[/tex] are inverses, then [tex]\( (f \circ g)(x) = g(x) \)[/tex] and [tex]\( (g \circ f)(x) = x \)[/tex]."