2014-04-26 グラフ: sqrt(abs(x))-sqrt(6-x^2)*4/5-1、sqrt(abs(x))+sqrt(6-x^2)*4/5-1 グラフ: sqrt(abs(x))-sqrt(6-x^2)*4/5-1、sqrt(abs(x))+sqrt(6-x^2)*4/5-1