2(y-2)-9(1-y)=3(4y-1),{-10,10}
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2(y-2)-9(1-y)=3(4y-1),{-10,10}2(y-2)-9(1-y)=3(4y-1),{-10,10}2(y-2)-9(1-y)=3(4y-1),{-10,10}2(y-2)-9(1
2(y-2)-9(1-y)=3(4y-1),{-10,10}
2(y-2)-9(1-y)=3(4y-1),{-10,10}
2(y-2)-9(1-y)=3(4y-1),{-10,10}
2(y-2)-9(1-y)=3(4y-1)
2y-4-9+9y=12y-3
11y-13=12y-3
12y-11y=3-13
y=-10
y (3y^2+8y-3)-6y(3y+2y-1)+9y
常微分方程的通解dy/dx=(x-y+1)/(x+y-3)y^4=2y^n+y=0y''+6y'+9y=e^(-3x)y''+y'-2y=4e^(2x)
(y-4)(3y+2)-(3y-7)(2y+1),其中y=4/3
2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1
解分式方程（y+3)/(y^2+y)-1/(1-y)=4/y要过程
通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
[T,Y]=ode45(@rigid,[0 1],[rand(15,1)]);plot(T,Y(:,1),'-',T,Y(:,2),'-.',T,Y(:,3),'.',T,Y(:,4),'-',T,Y(:,5),'-.',T,Y(:,6),'.',T,Y(:,7),'-',T,Y(:,8),'-.',T,Y(:,9),'.',T,Y(:,10),'-',T,Y(:,11),'-.',T,Y(:,12),'-.',T,Y(:,13),'.',T,Y(:,14),'-',T,Y(:,15),'.')
y- 2y+1/2=9- 8-y/4
y-2y+1/2=9-8-y/4
4y的平方-3y-1=y-2
Y的平方+3Y-1=0 y+3-1/y=0 y-1/y=-3 (y-1/y)^2=9 y^2+1/y^2-2=9 y^2+1/y^2=11 (y^2+1/y^2)=121 y^4+1/y^4+y^2+1/y^2-2=9y^2+1/y^2=11那个-2是怎么来的?
计算：[(y+1)/(y^2-4y+3)减去(y-2)/(y^2-6y+9)]除以(y-5)/(y-1)
y-1/y-2 - y-3/y-4=y-2/y-3 - y-4/y-5一共有四个分数哦~希望可以快一点~谢谢!
(y-2)(y^2-6y-9)-y(y^2-2y-15),其中y=1/2.先化简再求值.
方程y''-4y'+13y=0的通解方程y''=(1+y'*y')/2y的通解