1x2/1+2x3/1+3x4/1+4x5/1+.

1x2/1+2x3/1+3x4/1+4x5/1+...23x24/1

1个回答

X1+2X2-X3+X4=12X1-3X2+X3+2X4=23X1-X2+3X4=3X1-5X2+2X3+X4=1还是打
(1)(x+1)-2(x-1)=1-3x (2)4(x-2)-12x=24-3(x+1) (3)2(4y+5)-3(3y
(1)x/(1-1/5)=24(2)4/5/x=24(3)4/5x=24(4)1/2+1/4+1/8+1/10+1/32
((3x-7)^2-(x+5)^2)/(4x-24).2,((x^2+1)^2-4x(x^2+1)+4x^2)/(x-1
1x2=1/3(1x2x3=0x1x2 ) 2x3=1/3(2x3x4-1x2x3) 3x4=1/3(3x4x5- 2x
1/(x+1)(x+2) + 1/(x+2)(x+3) + 1/(x+3)(x+4) + 1/(x+4)(x+5)
1/x-1+1/(x-1)(x-2)+1/(x-2)(x-3)+1/(x-3)(x-4)+1/(x-4)(x-5)
1x2=1|3(1x2x3-0x1x2) 2x3=1|3(2x3x4-1x2x3) 3x4=1|3(3x4x5-2x3x
4/5x+2=-1/3x-1.-5/6x+2=-1/3x-1.6(x-4)=-3(4+2x).
X-(1/4+3)-1/3{(X-1/4X+3)}-2-1/2{X-(X-1/4X+3)-1/3(X+1/4X+3)-2