100*x-x^2=475
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100*x-x^2=475100*x-x^2=475100*x-x^2=475x²-100x+475=0(x-95)(x-5)=0x=95,x=5额y=-t+2-2t=-(t+2/t)+2t
100*x-x^2=475
100*x-x^2=475
100*x-x^2=475
x²-100x+475=0
(x-95)(x-5)=0
x=95,x=5
额
y=-t+2-2t
=-(t+2/t)+2
t+2/t是对勾函数
0
t+2/t最小=9/4
-(t+2/t)+2最大=-1/4
所以y最大值是-1/4
（X+X)+(X-X)+(X*X)+(X/X)=100
100*x-x^2=475
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=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
100(X - 2) + 10X + 2X = 100*2X + 10X + X - 2 - 495
100×2x+10x+3x+216=100×3x+10×2x+x
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)
解方程:x-2x+3x-4x+...+99x-100x=25
解方程：x-2x+3x-4x+.+99x-100x=25
x-2x+3x-4x+...+99x-100x=25
x+2x+3x+.+100x
f(x)=x^2+x (x
先化简再求值(x+3x+5x+7x+.+101x)-(2x+4x+6x+...100x),其中x=51分之2