10/40+(1/40+1/80)(x-10)=1
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
求几道解方程数学题60%x+25=40 x+30%x=52 19-120%x=7 x-10%x=18 (1-25%)x=
解方程 40%x+2=12 x+25%x=10 x-30%x=1.4 15x-60=240 x+1
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
1. x+0.5x=6 4x+16=40 x/5=32% x-4/9x=10/21 x-1/8x=5/8 7x÷2=2.
x+15%x=3.22 ,1/2x-25%x=10 ,x*(1-37.7%)=5/8 ,40%x=16 ,19-120%
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
C语言中编写s=1-x+(x*x)/2!-(x*x*x)/3!+(x*x*x*x)/4!知道最后一项的绝对值小于10的-
1/[x(x-1)]+1/[x(x+1)]+…+1/[(x+9)(x+10)]=1/(x+10)