Question: ( a ) Show that the function f defined by f ( x ) = x x 2 + 1 2 for all xinR is

(a) Show that the function f defined by f(x)=xx2+12 for all xinR is a
bijection of R onto fgRRf(x)=ax+bg(x)=cx+dfgg@f=f@g%{1,2,3,4}{1,2,3,4}
( a ) Show that the function f defined by f ( x )

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