2[4/3y—(2/3y—1/2)]=3/4y急·································!1
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2[4/3y—(2/3y—1/2)]=3/4y急·································!1
2[4/3y—(2/3y—1/2)]=3/4y
急·································!1
2[4/3y—(2/3y—1/2)]=3/4y急·································!1
2[4/3y—(2/3y—1/2)]=3/4y
8/3y—2(2/3y—1/2)=3/4y
8/3y—4/3y+1=3/4y
4/3y+1=3/4y
4/3y-3/4y=-1
16/12y-9/12y=-1
7/12y=-1
y=12/7
4(5—2y)+7(y+1)=3(4y-1)+17求y
4*(5—2y)+7(y+1)=3(4y-1)+17求y
(y^2)^4y-(-2y)^3y^6=
已知y=y(x)的导数y',y‘’存在,且y=y(x)的反函数为x=x(y),试用y',y''表示(d^2x)/dx^2 —(y'')/(y')^3
(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
数学题=y(y+3)-4(y+3)2=(y+3)(y-4y-12)
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
(y+1)分之(2y+3)=(3y+4)分之(6y+7)
4y的平方-3y-1=y-2
y (3y^2+8y-3)-6y(3y+2y-1)+9y
解方程:2y+5/3y-6 — y/2 = 5y-4/2y-4
解方程3y+1/y+2+2/2-y=3-(3y/y的平方-4)
(96/y²16)+(3y-1/4-y)=(2y-1/y+4)-5
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!