你如何隐含地区分-y ^ 2 = e ^(2x-4y)-2yx?

你如何隐含地区分-y ^ 2 = e ^(2x-4y)-2yx?
Anonim

回答:

#DY / DX =((E ^(X-2Y))^ 2Y)/(图2(e ^(X-2Y))^ 2 + X-Y)#

说明:

我们可以这样写:

#2yx-Y ^ 2 =(E ^(X-2Y))^ 2#

现在我们采取 #d / DX# 每个学期:

#d / DX 2yx -d / DX Y ^ 2 = d / DX (E ^(X-2Y))^ 2#

#2码/ DX X + XD / DX 2Y -d / DX Y ^ 2 = 2(E ^(X-2Y))d / DX并e ^(X-2Y)#

#2码/ DX X + XD / DX 2Y -d / DX Y ^ 2 = 2(E ^(X-2Y))d / DX X-2Y E 1(X-2Y)#

#2码/ DX X + XD / DX 2Y -d / DX Y ^ 2 = 2(E ^(X-2Y))E 1(X-2Y)(d / DX X -d / DX 2Y)#

#2Y + XD / DX 2Y -d / DX Y ^ 2 = 2(E ^(X-2Y))^ 2(1-d / DX 2Y)#

使用链规则我们得到:

#d / DX = DY / DX * d / DY#

#2Y + DY / dxxd / DY 2Y -dy / DXD / DY Y ^ 2 = 2(E ^(X-2Y))^ 2(1-DY / DXD / DY 2Y)#

#2Y + DY / dx2x-DY / dx2y = 2(E ^(X-2Y))^ 2(1-DY / DX2)#

#2Y + DY / dx2x-DY / dx2y = 2(E ^(X-2Y))^ 2-DY / DX4(E ^(X-2Y))^ 2#

#DY / DX4(E ^(X-2Y))^ 2 + DY / dx2x-DY / dx2y = 2(E ^(X-2Y))^ 2-2y#

#DY / DX(图4(e ^(X-2Y))^ 2 + 2X-2Y)= 2(E ^(X-2Y))^ 2-2y#

#DY / DX =(图2(e ^(X-2Y))^ 2-2y)/(图4(e ^(X-2Y))^ 2 + 2X-2Y)=((E ^(X-2Y) )^ 2Y)/(图2(e ^(X-2Y))^ 2 + xy)和#