的通解是（ ）ac321f3e198694bfe79b795623726dae.gif

A . lny／x=x+2B . lny／x=cex+1C .https://assets.asklib.com/psource/2015102616402594889.jpg =y／x+2D . siny／x=y／x

A .https://assets.asklib.com/psource/2015103009053978960.jpg B .https://assets.asklib.com/psource/2015103009055269099.jpg C .https://assets.asklib.com/psource/2015103009060579633.jpg D .https://assets.asklib.com/psource/201510300906169247.jpg

A .https://assets.asklib.com/psource/2015103009032465775.jpg B .https://assets.asklib.com/psource/2015103009033749500.jpg C .https://assets.asklib.com/psource/2015103009035283084.jpg D .https://assets.asklib.com/psource/2015103009040560741.jpg

A . lnx+C B . ln（x+C. C . C2+ln|x+C1| D . C2-ln|x+C1|

A .https://assets.asklib.com/psource/2015103009085663303.jpg B .https://assets.asklib.com/psource/2015103009091011647.jpg C .https://assets.asklib.com/psource/2015103009092395807.jpg D .https://assets.asklib.com/psource/2015103009093643077.jpg

A .https://assets.asklib.com/psource/201510300907376719.jpg B .https://assets.asklib.com/psource/201510300907504172.jpg C .https://assets.asklib.com/psource/2015103009080470109.jpg D .https://assets.asklib.com/psource/201510300908171499.jpg

A . A B . B C . C D . D

A .https://assets.asklib.com/psource/2015103009102186957.jpg B .https://assets.asklib.com/psource/2015103009103349223.jpg C .https://assets.asklib.com/psource/2015103009104759362.jpg D .https://assets.asklib.com/psource/2015103009105963667.jpg

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 . ['y=f（x）+chttps://assets.asklib.com/psource/2015102616471385225.jpg B . y=f（x）https://assets.asklib.com/psource/2015102616471475863.jpg -https://assets.asklib.com/psource/2015102616471475863.jpg +cC . y=f（x）-1+chttps://assets.asklib.com/psource/2015102616471385225.jpg D . y=f（x）-1+chttps://assets.asklib.com/psource/2015102616471475863.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 . A B . B C . C D . D

A . 正确 B . 错误

设方程y"-2y&39;-3y=f(x)有特解y^*，则它的通解是______；

A．y=e^C₁x B．y=C₁x+C₂ C．y=C₂e^C₁x D．y=e^C₁x+C₂

已知<img src='https://img2.soutiyun.com/ask/2021-03-05/983788929486876.png' />若β=<img src='https://img2.soutiyun.com/ask/2021-03-05/98378894843696.png' />则线性方程组Ax=β的通解是______

<img src='https://img2.soutiyun.com/ask/2020-12-21/97739374001756.png' />

A．y=e^-∫p(x)dx[∫q(x)e^∫p(x)dxdx+C] B．y=e^∫p(x)dx∫q(x)e^∫p(x)dxdx； C．y=e^∫p(x)dx[∫q(x)e^-∫p(x)dxdx+C]； D．y=Ce^-∫p(x)dx

A.<img src='https://img2.soutiyun.com/ask/2020-12-11/976570627255246.png' /> B.<img src='https://img2.soutiyun.com/ask/2020-12-11/976570636978802.png' /> C.<img src='https://img2.soutiyun.com/ask/2020-12-11/976570649953544.png' /> D.<img src='https://img2.soutiyun.com/ask/2020-12-11/976570665915458.png' />

设<img src='https://img2.soutiyun.com/ask/2021-03-05/983787944443535.png' />是Ax=b的3个解向量。其中 <img src='https://img2.soutiyun.com/ask/2021-03-05/983787959941421.png' /> 则Ax=b的通解是______