6.75—2.75/[10%x(9.75—4+1/4)]
计算:(4x^2—x+1)/(3-10x+3x^2)—(2x^3—6x^2+4x)/(6x—20x^2+6x^3),一线
(1)2x平方+3x=3,(2)x平方一2x+1=25(3)x(2x一5)=4x—10(4)x平方+5x+7=3x十11
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x*x+2x+x*x+10x+x*x+25+2x+x*x+1+1+16+x*x+4x*x+9-12x+16x*x+4-1
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
(x平方—2x分之x+2-x平方-4x+4分之x—1)除以x分之x-4
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),
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
X+7/X+1+X+8/X+2-X+9/X+3-X+10/X+4 的解法
解方程4x平方—4x+1=x平方+6x+9
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550