1x+(50-x)=100
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1x+(50-x)=1001x+(50-x)=1001x+(50-x)=1001x+(50-x)=100x+50-x=100x=50高深1X+=100-(50-X)X=50+X饿、不大可能啊1X=10
1x+(50-x)=100
1x+(50-x)=100
1x+(50-x)=100
1x+(50-x)=100
x+50-x=100
x=50
高深
1X+=100 -(50-X) X=50+X 饿、不大可能啊
1X=100 -(50-X)
X=50+X
0=50
对不起,再往下我不会了,我不知道是我把知识还给老师了,还是你……得了
(X+X)+(X-X)+(X*X)+(X/X)=100
1x+(50-x)=100
y=|x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|……+|x-99|+|x-100|+50n的最小值
50x(x-1)+60x(x-4)=5100
(x+1)+(x+2)+(X+3).+(x+50)=1325
x-50%x=100
1/X(X+1)+1/(X+1)(X+2)+1/(X+2)(X+3).+1/(X+99)(X+100)=
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
1X+2X+3X…+98X+99X+100X=50500X X等于多少?
1x+2x+3x+4x+5x+6x+7x…+99x=100
设函数f(x)=(x-1)(x-2)...(x-100)(x>100),求F'(X)
f(x)=x(x-1)(x-2)…(x-99)(x-100),求f'(100)
X(X-1)=X
x+ x+(x*50%)=1.5X?
x除55%=100 60%x=30 x+50%x=4.5 (1-25%)x=72 4x+40%x=176 解方程
已知x^4+x^3+x^3+x^2+x^1+1=0,求x^100+x^99+x^98+x^97+x^96的值
解方程:(1)2x-19=7x+31 (2)20-2x=x-1 (3)19-x=100-10x (4)1/3x+5=2/3x-62x-19=7x+317x-2x=-19-31这里应该是31+19吧?5x=-50x=-50÷5x=-10
f(x)=x(x-1)(x+2)(x-3)(x+4)……(x+100),求f'(1)