Q. 175.0( 2 Votes )

If f : R <span la

Answer :

Given:- (i) f : R R

(ii) f(x)=3x-4


(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

For f-1(x)=y


3y – 4 =x

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