Question

F(x)=5/x-1
g(x)=4-2x
Calculate fg(x)

Answer 1

Explanation:

define function fg(x) :

Fg(x) = f(g(x))

=
`(5)/(x)` (4-2x)-1

=
`(20)/(x)` -
`(10x)/(x)` - 1

= 20 - 10x -1

= 20 - 1 - 10x

= 19 - 10x