X-0.1X=1.

X-0.1X=1. X+12.3-0.1X=1. （X+X)+(X-X)+(X*X)+(X/X)=100 2.6x-x-0.1x=0.75 1.用公式计算：COSX=1-X*X/2!X*X*X*X/4!-X*X*X*X*X*X/6!.直到最后一项的绝对 x*x*x*x*x=80000? x-0.34x=1. x-0.7x=1. 5.4x+x=1. 5.4x+x=1. 132%x-x=1. x-0.75x=1. x+2/2x+2-x/2x=0.(x 2/2x 2)- (x/2x)=0.1 已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10) 1.x/9+x=62.x/x+1 + x+1/2x = 3 f(x)=x+1.当x≥3,f(x)=4-x,当x f(x)+f[(x-1)/x]=2x x不等于0,1.求f(x). 1.(1/X-1 )-2=X^-3X/X^-12.（X/X+1)^+5(X/X+1)+6=03.（8(X^+2X)/X^-1）+ 3（X^-1)/X^+2x