3/4*(X-10)=4X/5-30+10
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
求函数y=\x-1\+\x-2\+\x-3\+\x-4\+\x-5\+\x-6\+.+\x-10\的最小值
( A/X-5 ) + ( B/X+2 ) = 5X-4/X^2-3X-10 ^-^
x-4/x-6+x-8/x-10=x-5/x-7+x-7/x-9
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
解方程:11(6-x)/3(x-4)=10(5-x)/3(x-4)-5(6-x)/x-2