2x()=1/4()=5x()=1/3x()=()怎么填空
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
7x-3(2/3x+1/5x)-(x+2/5x)+2x,=5x怎么求出
X-2分之X=X-5分之X-4怎么解?还有X减3分之X等于X减1分之X+1
5x-4/x-2=4x 10/3x-6-1 怎么解
f(x)=(2x-3)^4*(x^2+x+1)^5的导数怎么求
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
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
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-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
1x+2x+3x+4x+5x+6x+7x…+99x=100
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)