(2x-1)/3-(10x+1)/12=(2x+3)/4-1

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/07/14 08:44:25

(2x-1)/3-(10x+1)/12=(2x+3)/4-1
两边同时乘以12,得
4(2x-1)-(10x+1)=3(2x+3)-12
8x-4-10x-10=6x+9-12
-2x-14=6x-3
-8x=11
x=-11/8
再问： 4x/1.2-0.84x-1/0.24=3/2[2/3(x/4-1)-2]-x
再答： 4x/1.2-(0.84x-1)/0.24=3/2[2/3(x/4-1)-2]-x 4x/(6/5)-(21/25x-1)/(6/25)=3/2(x/6-2/3-2)-x 10/3x-21/25×25/6x+25/6=x/4-1-3-x 10/3x-21/6x+25/6=-3/4x-4 两边同时乘以12，得 40x-42x+50=-9x-48 -2x+50=-9x-48 7x=-98 x=-14

x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550 |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^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002 x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 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- 若x=π/3,｜x+1|+|x+3|+...+|x+13|-|x+2|-|x+4|-...-|x+12| 求函数y=\x-1\+\x-2\+\x-3\+\x-4\+\x-5\+\x-6\+.+\x-10\的最小值