(3^x)²-10×3^x+9
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
3x³·x^9+x²·x^10-2x·x³·x^8计算
(3^x)²-10×3^x+9
X²-6x+9 x²-9 x+3
x²+3x+9/(x²-27)+6x/(9x-x²)-(x-1)/(6+2x)
(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)
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+7/X+1+X+8/X+2-X+9/X+3-X+10/X+4 的解法
不等式|(x+3)/x|>(x+3)/x,不等式(x²-9)/(x-2)>0
化简X-X^2-X^3-X^4-...X^9+X^10
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550