Q. 385.0( 1 Vote )

Let f : R R be the function defined by f(x) = 4x – 3 for all x ϵ R. Then write f–1.

Answer :

Formula:-


(i)A function f : X Y is defined to be invertible, if there exists a function g : Y X


such that gof =Ix and fog = Iy .The function g is called the inverse of f and is denoted by f-1


Given:-


(i) f : R R


(ii) f(x) = 4x – 3 for all x ϵ R.


f(x)=y


4x-3=y





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