求方程Xy-10(x+y)=1

求方程xy-10(x+y)=1求方程xy-10(x+y)=1求方程xy-10(x+y)=1xy-10(x+y)=1xy-10x-10y+100=101(x-10)(y-10)=101①x-10=1y-

xy''=x-y求方程通解xy''=x-y求方程通解xy''=x-y求方程通解xy''+y=x(xy)''=x积分：xy=x^2/2+C

求微积分方程y''=-xy/x+1的通解求微积分方程y''=-xy/x+1的通解求微积分方程y''=-xy/x+1的通解y''=-xy/（x+1）dy/y=-xdx/(x+1)=-(x+1-1)dx/(x+1

求方程xy''''=y''ln(y''/x)的通解求方程xy''''=y''ln(y''/x)的通解求方程xy''''=y''ln(y''/x)的通解设Y=y''降阶：Y''=(Y/x)ln(Y/x)这就是一个一阶齐次方程.设Y

y=y(x)由方程[e^(x+y)]+sin(xy)=1确定,求y''(x)及y''(0)y=y(x)由方程[e^(x+y)]+sin(xy)=1确定,求y''(x)及y''(0)y=y(x)由方程[e^(x

解方程,求x和yx-y=10xy=144解方程,求x和yx-y=10xy=144解方程,求x和yx-y=10xy=144x=10+y①将①代入xy=144得(10+y)y=144y²+10y

解方程求x和yx-y=10xy=144解方程求x和yx-y=10xy=144解方程求x和yx-y=10xy=144x-y=10y=x-10xy=x(x-10)=144x²-10x-144=0

求方程x√(y-1)+y√(x-1)=xy的实数解.求方程x√(y-1)+y√(x-1)=xy的实数解.求方程x√(y-1)+y√(x-1)=xy的实数解.由根式的意义知y≥1,x≥1于是设y=csc

求方程(x+y)/(x^2-xy+y^2)=3/7的整数解1求方程(x+y)/(x^2-xy+y^2)=3/7的整数解1求方程(x+y)/(x^2-xy+y^2)=3/7的整数解1(x+y)/(x^2

求方程x+y=x^2-xy+y^2+1的实数解求方程x+y=x^2-xy+y^2+1的实数解求方程x+y=x^2-xy+y^2+1的实数解x+y=x^2-xy+y^2+1则有;y^2+(-x-1)y+

求方程x+y=x²-xy+y²+1的实数解求方程x+y=x²-xy+y²+1的实数解求方程x+y=x²-xy+y²+1的实数解x+y=x&#

求方程x+y=x²-xy+y²+1的实数解求方程x+y=x²-xy+y²+1的实数解求方程x+y=x²-xy+y²+1的实数解这是一个方程,

Z=x*sinxy+e^x+y或设y=(x)是由方程xy+sinx+siny=1确定,求y”Z=x*sinxy+e^x+y或设y=(x)是由方程xy+sinx+siny=1确定,求y”Z=x*sinx

方程e^x=y+xy=1确定了函数y=y（x）求y‘（0)方程e^x=y+xy=1确定了函数y=y（x）求y‘（0)方程e^x=y+xy=1确定了函数y=y（x）求y‘（0)xy+e^y+y=1e^y

方程e^x+y+xy=1确定了函数y=y（x）求y‘（0)方程e^x+y+xy=1确定了函数y=y（x）求y‘（0)方程e^x+y+xy=1确定了函数y=y（x）求y‘（0)对方程求导,有e^x+y‘

已知方程sin(xy)+x+y=1确定了函数y=y(x),求y''.已知方程sin(xy)+x+y=1确定了函数y=y(x),求y''.已知方程sin(xy)+x+y=1确定了函数y=y(x),求y''.两

设方程3^（xy)=x+y+1确定的隐函数为y=y(x),求y''(0).设方程3^（xy)=x+y+1确定的隐函数为y=y(x),求y''(0).设方程3^（xy)=x+y+1确定的隐函数为y=y(x)

函数y=y(x)由方程e^xy+lny/(x+1)=0确定,求y(0),函数y=y(x)由方程e^xy+lny/(x+1)=0确定,求y(0),函数y=y(x)由方程e^xy+lny/(x+1)=0确

隐函数y(x)由方程lny+e^xy=1确定,求y''(0)隐函数y(x)由方程lny+e^xy=1确定,求y''(0)隐函数y(x)由方程lny+e^xy=1确定,求y''(0)对这个方程微分有dy/y+

求方程xy-x-y=2的整数解求方程xy-x-y=2的整数解求方程xy-x-y=2的整数解原方程=x(y-1)-(y-1)=(x-1)(y-1)=3因为是整数解,所以有四种情况x-1=1,y-1=3或