1/x+1/2x+1/3x=3/3x+10(怎么解?)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2/(X-2)+X/(X+3)=1 怎么解
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
3x+1/3x=x+2(x+10)这个方程怎么解,
5x-4/x-2=4x 10/3x-6-1 怎么解
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
7x-3(2/3x+1/5x)-(x+2/5x)+2x,=5x怎么求出
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),
解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7)
解方程:x+2/x+1-x+3/x+2=x+6/x+5-x+7/x+6
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1