1、X+Y=240 X=Y+Y+Y X=? Y=? 2、X+Y=91 Z+Y=63 Z+X=46 X=? Y=?Z=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/12/02 11:06:44
xK02KM+$JE)1iyC_وVJY
-m0 Eo96"l꫰ԧ>K[PutaԽ?_Ր
Au+'a,a"{HMIC"K[[H+iw
ʠΙpq^jzI%L%{ۯiVW?
1、X+Y=240 X=Y+Y+Y X=? Y=? 2、X+Y=91 Z+Y=63 Z+X=46 X=? Y=?Z=?
1、X+Y=240 X=Y+Y+Y X=? Y=? 2、X+Y=91 Z+Y=63 Z+X=46 X=? Y=?Z=?
1、X+Y=240 X=Y+Y+Y X=? Y=? 2、X+Y=91 Z+Y=63 Z+X=46 X=? Y=?Z=?
X=180 Y=60
X=37 Y=54 Z=9
1.x=180 y=60
2.x=37 y=54 z=9
1、x=180,y=60.
x+y=4y=240,y=60,x=3y=180.
2、x=37,y=54,z=9.
x+y+z=(91+63+46)/2=100,x=100-63=37,y=100-46=54,z=100-91=9.
1.X=180,Y=60.2.X=37,Y=54,Z=9
1.Y=60
2.X=37Y=54Z=9
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
y'/y=1/x
化简 x / y(x+y) - y / x(x+y) =
x+x+y+y+y=21 ,x+x+y+y+y+y+y=27 ,x ,y=?
x+x+y+y+y=21 ,x+x+y+y+y+y+y=27 ,x ,y=?
x(x+y)(x-y)-y(y+x)(y-x)=(x-y)( )填空
y'-(1/x)y=xe^-x
X+Y=240 X=Y+Y+Y X=?Y=?
x十y=240 x=y+y+y x=多少 y=多少
[(y*y*y-y)/(xy+1)*(xy+1)-(x+y)*(x+y)]/[(x+y)*y/(x+1)]其中x=-11,y=1/12,化简再求值.
y(x+y)+(x-y)²-(x+y)(x-y),其中x=-1/3,y=3
(x-y)(x+y)-(x+y)^2+2y(y-x),其中x=1,y=3.
2y(x+二分之一y)-[(x+y)(x-y)+2y(y+x)],其中|x-1|=2
常微分方程y'=(x+y)ln(x+y)-1
y'=(x-y+1)/(x+y-3)通解
:y' +y= cos x y=
微分方程y - 2y' + y = x
求y'=y/(y-x)