0.05-0.2x/0.02=1+x/0.5
x-2/0.2-x+1/0.5=3 x=?
求1/2x^2-1/4x+0.2x^3+0.25x-0.5x^2-1/5x^3+0.5x-1 其中x=12/13
0.2x+0.5/0.5-0.03+0.02x/0.03=1 x-1/0.3-x+2/0.5=1
0.3分之1-0.5x减0.3分之0.2x-1=0.02分之0.3x.
(0.1x-0.2)/0.02+(x+1)/0.5=3 求x
(1)3x(x+0.2)=4x(x-1.1)
1-0.5x/0.3-2/3x=0.3x/0.2x+1
1-0.3分之1.7-2x=0.7分之x-1 0.3分之0.2x-0.1-0.05分之0.01x+0.02=0.1x
(X+4)/0.2-(X-3)/0.5=0.2 x-(x-1)/6=3-(x+2)/3 x/12-(2x-1)/20={
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
matlab中f=@(x)[x(2);x(3);0.05*x(1)*(x(2)+x(3))]中@(x)什么意思
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x