Question

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.

Answer 1

f(x) = 2/x and g(x) = 2/x

Answer 2

f(g(x))

well if you had f(3) you would substitute 3 into where you find x
so you have f(g(x)) so substitute g(x) where you find x in f(x)
this means you are substituting the function g(x) into f(x)

Answer 3

\[\rm f(g(x)) = {2 \over \large {2 \over x}}\]and\[\rm g(f(x)) = {2 \over \large{2 \over x}}\]Simplify.

Answer 4

@ParthKohli PARTH YOU ARE ALIVE

Answer 5

@amorfide YA I AM BACK FROM THE DEAD

Answer 6

ummm x for both???

Answer 7

showing that f(g(x)) = x and g(f(x)) = x.

that is exactly what you should get
well done

Answer 8

thanks! (that was easier than I thought) ^^