都要4X-2(10-x)-10=5(14-x)-3[10-(14-x)]

1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550 |X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10| x-1=3x+3 x-3=12-4x 6x-14=5x-10 x+1=2-4x 解方程3x-10/x-3 +4x-5/x-1=6x-17/2x-5 +8x-14/2x-3 3x-10/x-3 +4x-5/x-1=6x-17/2x-5 +8x-14/2x-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), 解方程:4x-2(10-x)-10=5(14-x)-3[10-(14-x)] 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 3x-10/x-3+4x-5/x-1=6x-17+8x-14/2x-3分式化简, 求函数y=\x-1\+\x-2\+\x-3\+\x-4\+\x-5\+\x-6\+.+\x-10\的最小值