x-3/2+2x-4/2+3x-5/4+...+8x-10/9=3x-1/2+4x-2/3+...+10x-8/9
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/07 20:45:48
x-3/2+2x-4/2+3x-5/4+...+8x-10/9=3x-1/2+4x-2/3+...+10x-8/9
![x-3/2+2x-4/2+3x-5/4+...+8x-10/9=3x-1/2+4x-2/3+...+10x-8/9](/uploads/image/z/1103323-67-3.jpg?t=x-3%2F2%2B2x-4%2F2%2B3x-5%2F4%2B...%2B8x-10%2F9%3D3x-1%2F2%2B4x-2%2F3%2B...%2B10x-8%2F9)
(-2x-2)/2+(-2x-2)/3+(-2x-2)/4+…+(-2x-2)/9=0
(-2x-2)*(1/2+1/3+1/4+1/5+…+1/9)=0
-2x-2=0
-2x=2
x=-1
(-2x-2)*(1/2+1/3+1/4+1/5+…+1/9)=0
-2x-2=0
-2x=2
x=-1
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
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),
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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
X+7/X+1+X+8/X+2-X+9/X+3-X+10/X+4 的解法
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x+8)(x+9)(x+10)请化简
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)