如果1/2*3=1/2x1/3x1/4,1/7/*4=1/7x1/8x1/9x1/10那么(1/2*4)+(1/3*3)
2个回答
(1/2*4)+(1/3*3)
=1/2x1/3x1/4x1/5+1/3x1/4x1/5
=3/2x1/3x1/4x1/5
=1/40
相关问题
1/1*2x+1/2*3x+1/3*4x+1/4*5x+1/6*7x+1/7*8x+1/8*9x+1/9*10x=1/1
1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2
2(x-2)+2=x+1 2(x-2)-3(4x-)=9(1-x) 7(2x-1)-3(4x-1)=4(3x+2)-1
1.48x(3/4-1/6)2.3/4x4/9+5/9x3/43.1/5x1/8+7/8x1/54.12x(1/2+1/
简算题:1x2/1+2x3/1+3x4/1+4x5/1+5x6/1+6x7/1+7x8/1+8x9/1
解方程.[1/2]+[1/4]+x=[9/4]9x-[7/5]=[8/5][7/10]+[1/2]-x=[2/3].
方程:3(X+2)=4(X+1) 9*3-1.7X=13.4 7X-3X=2.042 5(X+3)=20 1.4X-1.
已知方程(1)3x-1=2x+1,(2)3/2x-1=x,(3)x+1/3=2/3x-2,(4)7/2+1+3x/4=7
(1)5+2x=1 (2)8-x=3x+2 (3)10x-3=9 (4)6x-7=4x-5 (5)1/2x-6=3/4x
(1/1-x)-(1/1+x)-(2x/1+x^2)-(4x^3/1+x^4)-(8x^7/1+x^8)