数学：定义新运算

显示全部楼层 · 2012-11-20 18:17:12

2！（1/3*2-1/4*x）=1/3*1-1/4*x即2！（2/3-x/4)=1/3-x/4在把（2/3-x/4)整体看作运算里的b,1/3*2-1/4*（2/3-x/4)=1/3-x/4也就是2/3-1/4*2/3+1/4*x/4=1/3-x/42/3-1/6+x/16=1/3-x/4整理得5x/16=-1/6，x=-8/15...

千问 · 2012-11-20 18:17:12

2！（2！x）＝1！x2！(1/3*2-1/4x)=1/3*1-1/4x1/3*2-1/4*(1/3*2-1/4x)=1/3*1-1/4x2/3-1/6+1/16x=1/3-1/4x1/16x+1/4x=1/3-2/3+1/65/16x=-1/6x=-8/15...

千问 · 2012-11-20 18:17:12

2！（2！x）＝1！x2！（2/3-x/4）＝1/3-x/42/3-1/4*（2/3-x/4）＝1/3-x/42/3-1/6+x/16＝1/3-x/4x/4+x/16＝1/3-2/3+1/65x/16=-1/6x=8/15...

千问 · 2012-11-20 18:17:12

2！(1/3*2-1/4x)=1/3*1-1/4x1/3*2-1/4*(1/3*2-1/4x)=1/3*1-1/4x2/3-1/6+1/16x=1/3-1/4x1/16x+1/4x=1/3-2/3+1/65/16x=-1/6x=-8/15...