f(x)=x^2-∫(0->1) f(x)dxletf(x) =x^2+ Cx^2-∫(0->1) f(x)dx=x^2-∫(0->1) (x^2+C)dx=x^2 - [(1/3)x^3+ Cx]|(0->1)=x^2 - (1/3+ C )=>C= -(1/3+C)C= -1/6f(x) = x^2 -1/6
