知识技能1,(5).3*(X-7)+5(X-4)=15 (6).4X-3(20-X)=-4(7).(Y-1/2)=2-(
知识技能1,(5).3*(X-7)+5(X-4)=15 (6).4X-3(20-X)=-4(7).(Y-1/2)=2-(
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
若2x-3y+4=0则x(x*x-1)+x(5-x*x)-6y+7
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
有几道题想请教一下7x=6x-4 x-15=74 3x=2x+5 -5x=8-4x 9y=6y-6 8x=4x+1 7x
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
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),
求函数y=\x-1\+\x-2\+\x-3\+\x-4\+\x-5\+\x-6\+.+\x-10\的最小值
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
1x+2x+3x+4x+5x+6x+7x…+99x=100
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3