问题标题:
【(xy-3/2y-1/2)-(xy-3/2x+1),其中x=3/10,y=3/8】
更新时间:2024-04-28 05:54:27
问题描述:
(xy-3/2y-1/2)-(xy-3/2x+1),其中x=3/10,y=3/8
戈弋回答:
(xy-3/2y-1/2)-(xy-3/2x+1)
=(3/10*3/8-3/2*3/8-1/2)-(3/10*3/8-3/2*3/10+1)
=-129/80
(xy-3/2y-1/2)-(xy-3/2x+1),其中x=3/10,y=3/8