作业帮7x-5/4=3/8;2x-1/6=5x+1/8;x-1/2+1=x-1;3/10(200+x)-2/10(300-x)
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/11 20:22:30
7x-5/4=3/8;2x-1/6=5x+1/8;x-1/2+1=x-1;3/10(200+x)-2/10(300-x)=300x9/25;2y-1/3=y+2/4-1;3/4[4/3(1/2...
7x-5/4=3/8;2x-1/6=5x+1/8;x-1/2+1=x-1;3/10(200+x)-2/10(300-x)=300x9/25;2y-1/3=y+2/4-1;3/4[4/3(1/2x-1/4)-8]=3/2x+1
7x-5/4=3/8;2x-1/6=5x+1/8;x-1/2+1=x-1;3/10(200+x)-2/10(300-x)=300x9/25;2y-1/3=y+2/4-1;3/4[4/3(1/2x-1/4)-8]=3/2x+1
14x-15=3 x=9/7; 8x-4=15x+3 x=-1;x-1/2=1 x=3;600+3x-600+2x=300x18/5 x=12*18=216;
2y-1/3=y+2/4-1 8y-4=3y+6-12 5y=-2 y=-2/5
(1/2x-1/4)-6=3/2x+1 1/2x-3/2x=7+1/4 -2=14x+x/2 -4=29x x=-4/29
2y-1/3=y+2/4-1 8y-4=3y+6-12 5y=-2 y=-2/5
(1/2x-1/4)-6=3/2x+1 1/2x-3/2x=7+1/4 -2=14x+x/2 -4=29x x=-4/29
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-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
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
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
（1） x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x