57/100<γ<58/100 から 42/100<1−γ<43/100、14/100<2γ−1<16/100
1/(1/γ−[1/γ])−[1/(1/γ−[1/γ])]
=1/(1/γ−1)−[1/(1/γ−1)]
=γ/(1−γ)−[γ/(1−γ)]
=γ/(1−γ)−1
[1/(1/(1/γ−[1/γ])−[1/(1/γ−[1/γ])])]=[1/(γ/(1−γ)−1)]
=[(1−γ)/(2γ−1)]
≧2
>1