Answer to Question #331287 in Math for Khalida Ibrahim

Question #331287

Let f: R->R and g: R->R be defined respectively as follows:

f: x->9-× and g: x->3x+1

Find the domain and range of f and g.

Find f^-1 and g^-1. Using f^-1 and g^-1 you found,

Show that f^-1°g^-1=(g°f)^-1

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