(gof)(x) = g [ f(x) ]
= 1 / ( ( x + 3 ) - 2 )
= 1 / ( x + 1 )
(gof)–¹(x)
y = 1 / ( x + 1 )
xy + y = 1
xy = 1 - y
x = ( 1 - y ) / y
(gof)–¹(x) = ( 1 - x ) / x
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(gof)(x) = g [ f(x) ]
= 1 / ( ( x + 3 ) - 2 )
= 1 / ( x + 1 )
(gof)–¹(x)
y = 1 / ( x + 1 )
xy + y = 1
xy = 1 - y
x = ( 1 - y ) / y
(gof)–¹(x) = ( 1 - x ) / x