Q. 155.0( 2 Votes )

If f :R<span lang

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


f-1(x)=y


f(y)=x


10y-7=x




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