16-X=4/9 2x+9=12.8 6(2/3+x)=15 6x-2*10/13=12.4 求上面4题答案
16-X=4/9 2x+9=12.8 6(2/3+x)=15 6x-2*10/13=12.4 求上面4题答案
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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-o.8x=6 12x-8x=4.8 3x-8=16 7.5x-2x x-0.7x=3.6 求答案
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980
已知x=9/2 求:[(x^+7x+10)/(x^2+6x+5)]×[(x^3+1)/(x^2
(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几?
求函数y=\x-1\+\x-2\+\x-3\+\x-4\+\x-5\+\x-6\+.+\x-10\的最小值