Answers

f(x)=|x^2-2x| [a,a+1]
0≦a≦1のとき
g(a)=f(1)=1

1<a<(1+√3)/2のとき
g(a)=f(a)=-a^2+2a

(1+√3)/2≦aのとき
g(a)=f(a+1)=a^2-1

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