2.4y-3.12=1.2(y+4.1)
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2.4y-3.12=1.2(y+4.1)2.4y-3.12=1.2(y+4.1)2.4y-3.12=1.2(y+4.1)2.4y-3.12=1.2y+4.921.2y=8.04y=6.7
2.4y-3.12=1.2(y+4.1)
2.4y-3.12=1.2(y+4.1)
2.4y-3.12=1.2(y+4.1)
2.4y-3.12=1.2y+4.92
1.2y=8.04
y=6.7
2.4y-3.12=1.2(y+4.1) x=?
2.4y-3.12=1.2(y+4.1)
已知XY.Y=-3,求-XY(X.X.X.Y.Y.Y.Y.Y.Y.Y-3.X.X.Y.Y.Y.Y.Y-Y)的值.(过程完整)
解方程:(y-3y+2)(y+3y-2)=y(y+3)(y-3)
y=(y')^3+y'
x+1.3=y-1.2则x()y
x+1.3=y-1.2,x()y
(y+3/y方+y)-(1/1-y)=4/y
对于(y一撇)y`=y/x(y-1)求导,我求的结果是y``=-y^2-y`x+y/x^2(y-1)^2 怎么不对啊,我的求导过程是:y`x(y-1) - [x(y-1)]` y y`xy-y`x-(y-1+xy`)y -y^2-y`x+yy``=-------------------------=----------------------=-----------------x^2 (y-1
3y/5+(y+4)/2.5=2.4y
3y/5+(y+4)/2.5=2.4y
1.2y-0.04y=9y^2
(1-Y)²=2Y(Y+1)
y'=(y/x)^2+y/x+4微分方程
2y-2.4=0.5y-0.6
3x+y=2 -y/x+y=123x+y=2 (-y/x)+y=12
y(x+y)+(x-y)²-(x+y)(x-y),其中x=-1/3,y=3
求y''+2y'+y=e^-x/x的通解y''+2y'+y=(e^-x)/x