5/18 x 1/4 x 9/10 ( 1/4 + 2/9 )x 36 7/11 x 3/8 x 4/9 简便计算哈~

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/06 14:39:35

5/18 x 1/4 x 9/10
=(5/18x9/10)x1/4
=1/4x1/4
=1/16
( 1/4 + 2/9 )x 36
=1/4x36+2/9x36
=9+8
=17
7/11 x 3/8 x 4/9
=7/11x(3/8x4/9)
=7/11x1/6
=7/66

5/18 x 1/4 x 9/10 ( 1/4 + 2/9 )x 36 7/11 x 3/8 x 4/9 简便计算哈~ |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 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), 1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980 (x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x+8)(x+9)(x+10)请化简 1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少 X+7/X+1+X+8/X+2-X+9/X+3-X+10/X+4 的解法（1） x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8 a*b=2×a+b 计算x*2x*3x*4x*5x*6x*7x*8x*9x=3039 x= x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?