18/09/25 04:44:40.72 Mf+IIU9l.net
>>283
C: y = sin(πx),
D: y = a sin(πx/2), a = 0.5857864376268
E: y = b x, b = 0.8062893052025
CとDの交点 (x,y) = (0.810763906019775 , 0.5600968657158)
CとEの交点 (x,y) = (0.782633029520911 , 0.6310286460088)
DとEの交点 (x,y) = (0.559244088133690 , 0.4509125272599)