0.04/(0.01x)-0.02/(0.27x-0.18)=1
若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂)
1x/0.2-0.27x+0.18/0.04=1
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
(5x-2)/3=1+(3x-1)/4的解和0.1x/0.2-(0.27x+0.18)/0.04=1的解
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
3/x-1=4/x 6/x+1=x+5/x(x+1)
5x+3=x-4,4y+11=22,11x+68-2x=100-9x,0.1x/0.2-(0.27x+0.18)/0.0
函数的表示法 f(x+1/x)=x*x+1/(x*x)
(5x*0.85+9(66-x)*0.8)/(5x+9(66-x))=1-0.18
(x)-2x·x-x-2x+1=0求x的值,
先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5
(x-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少