微分方程ylnydx+(x-lny)dy＝0的通解为（）https://assets.asklib.com/psource/2016071617120453219.jpg

A . 1+x2=cyB . （1+x2）（3+2y）=cC .https://assets.asklib.com/psource/2015110316014925465.png D . （1+x2）2（3+2y）=c

A . y=C +C x+C e +C e B . y=C cosx+C sinx+C x+C C . y=C +C X+C e +C e D . y=C e +C e +C cosx+C sinx

A .https://assets.asklib.com/images/image2/2017051115262332611.png B .https://assets.asklib.com/images/image2/201705111526331392.png C .https://assets.asklib.com/images/image2/2017051115263940123.png D .https://assets.asklib.com/images/image2/2017051115264827726.png

A . y=C1lnx+C2 B . y=C1lnx+C2X C . y=C（lnx+1） D . y=C（lnx+x）

A . y=C e +C e B . y=e （C +C x） C . y=C e +C e D . y=C e +C e

A . ['['https://assets.asklib.com/psource/2015103009064599691.jpg B .https://assets.asklib.com/psource/2015103009065873482.jpg C . xy=CD .https://assets.asklib.com/psource/2015103009071339910.jpg

A .https://assets.asklib.com/psource/2015102915342612748.jpg B .https://assets.asklib.com/psource/2015102915344191283.jpg C .https://assets.asklib.com/psource/2015102915345561485.jpg D .https://assets.asklib.com/psource/2015102915350977296.jpg

A．y=e^x+e^-x B．y=e^x-e^-x C．y=C₁e^x+C₂e^-x D．y=C₁e^2x+C₂e^-2x

方程dy/dx-y/x=0的通解为()。 A．y=c/x B．y=cx C．y=1/x+c D．y=x+c

微分方程y&quot;+2y&amp;39;+3y=0的通解为（） <img src='https://img2.soutiyun.com/ask/uploadfile/9711001-9714000/c4f899776b5c0f64cf7b4297dd6530e9.png' />

微分方程yy"-y'2=0的通解为()。 <img src='https://img2.soutiyun.com/shangxueba/ask/1593001-1596000/1593579/ct_jggysbnjsm_jggysbnjschoose_0367(106).jpg' />

A.sinx+C1x+C2 B.sinx+C1+C2 C.-sinx+C1x+C2 D.-sinx+C1+C2

微分方程y&quot;+4y&amp;39;+4y=0的通解为() <img src='https://img2.soutiyun.com/ask/uploadfile/9819001-9822000/0114f033e5fd1ce4fe144720818b3399.png' />

设m×n矩阵A的秩为R(A)-n-1， 且<img src='https://img2.soutiyun.com/ask/2020-12-17/977050765391984.png' />是齐次方程Ax=0的两个不同的解，则Ax=0的通解为() A.<img src='https://img2.soutiyun.com/ask/2020-12-17/977050784779092.png' /> B.<img src='https://img2.soutiyun.com/ask/2020-12-17/977050796368755.png' /> C.<img src='https://img2.soutiyun.com/ask/2020-12-17/977050810153544.png' /> D.<img src='https://img2.soutiyun.com/ask/2020-12-17/977050823541309.png' />

<img src='https://img.soutiyun.com/ask/zq/20210707/994527810644764.png' />

方程e^xy&39;-1=0的通解为______；

方程yy〞＝1＋yˊ2满足初始条件y(0)＝1，yˊ(0)＝O的通解为________．