if f(x)=2x-1 and g(x)=x2 are two real functions, find
(i) (f-g)
(ii)(f/g)

We havefx=2x-1    and  gx=x2Here, the domain D1 of   fx is R   and the domain D2 of gx  is R.Therefore, f-gx=fx-gx   for  all xD1D2.f-gx=2x-1-x2   for all xR.Also, fgx=fxgx   for all xD1D2-x:gx=0fgx=2x-1x2   for all xR-0.

  • 1
(f-g)=2x-1-x^2
= -x^2+2x-1
  • 0
(f/g)=(2x-1)/( x^2) such that x is not equal to 0.
  • 0
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