1=1,1+2=3,1+2+3=6,1+2+3+4=10,等式左边各项的底数右边的底数有什么关系?可以得出什么规律?

1+1/2+18/6/3=? 1+2+3/6+1/4= 1*2*3+1-1+1/6=? (-2)-(+2/3)=?-2/3-(-1/6)=?（-1/2）-1/3=? 巧算：(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)===== 1-1/2+1/3-1/4+1/5-1/6+1/7.-1/50=? 1+2=3 6+7=? (2/3-1/2+1/6)除以1/24= 2-2x-1/6=x+1/3+1 1/4-1/5=1/18+1/6=1/2-1/8=7/11+5=1/3+1/4=2-1/3= 已知1/2=1-1/2,1/6=1/2-1/3,1/12=1/3-1/4.计算1/2+1/6+1/12+1/201/30+1/42+1/56+1/72+1/90=? 1+2=3? 1+1=?1+2=?1+3=? 因为1-2/1=2/1,2/1-3/1=6/1,3/1-4/1=12/1,所以2/1+6/1=1-2/1+2/1-3/1=1-3/1=3/2 2/1+6/1+12/1=1-2/1+2/1-3/1+3/1-4/1=1-4/1=4/3 1-1/2+1/3-1/4+1/5-1/6+…+1/15=23*[1/( )+1/( )+1/( )+1/( )] 计算(+5/2)-(-5/3)=-5/1(-5/2)-(-5/3)=5/12/1-3/1=6/1(-2/1)-3/1=-6/1 1/2+1/3+1/4+1/5+1/6+1/7+.1/20= 6/1{4/1[3/1(2/1x-1)+3]+5}=1 解方程