从1加到10什么方法1JIA10CHENG5=55(1+10)x10/2=552,谁要捣蛋猪11到110关的三星攻略你给我满意回答,我就要3,捣蛋猪110关通关攻略《捣蛋猪》游戏下载:点击进入4,xy3xy10求x21x1yy2的值X+Y=3,XY=-10,X^2+Y^2=(X+Y)^2-2XY=9+20=29,(1-X)(1-Y)=1-(X+Y)+XY=1+10+3=14。x/(1-x)+y/(1-y)=x/(xy-x)+y/(xy-y)=1/(y-1)+1/(x-1)=(x-1+y-1)/(y-1