已知非齐次线性方程组 https://assets.asklib.com/psource/201510291430383308.jpg 有两个不同的解，则增广矩阵的秩等于（）．
已知齐次线性方程 https://assets.asklib.com/psource/2015110116061593238.png 有非零解，则常数λ可取为（）
如果是齐次方程的n个线性无关解，则是非齐次高阶线性微分方程的通解。（）<img src="http://p.ananas.chaoxing.com/star3/origin/f3736d9aea8415c51a563ceb7460182b.png"/> <img src="http://p.ananas.chaoxing.com/star3/origin/0b4c60e54353a9f847f4c188614ca17f.png"/>
如果是齐次高阶线性微分方程的解，则也是该方程的解。（）<img src="http://p.ananas.chaoxing.com/star3/origin/66b90741b2e6c09dbb1d7cd97a13f4af.jpg"/> <img src="http://p.ananas.chaoxing.com/star3/origin/4135fe5a9086ba53061c68aac1239538.jpg"/>
能量方程中<img src='https://img2.soutiyun.com/latex/latex.action' />表示( )。
齐次线性方程组<img src='https://img2.soutiyun.com/shangxueba/ask/1497001-1500000/1497017/ct_kgctem_kgctechoose_0050(106)1.jpg' />的系数矩阵为A，若有3阶非零矩阵B使AB=0，则()。
微分方程<img src='https://img2.soutiyun.com/ask/2020-02-15/950615032354502.png' />的通解为( )。
电极反应<img src='https://img2.soutiyun.com/latex/latex.action' />的能斯特方程式为()。
1．微分方程<img src='https://img2.soutiyun.com/ask/2020-03-09/952636097163919.png' />是( )．
实验测得化学反应<img src='https://img2.soutiyun.com/ask/2020-03-05/952259955284323.png' />的速率方程为<img src='https://img2.soutiyun.com/ask/2020-03-05/95225996394296.png' />，根据上述条件可以认为( )
作变量代换x=Int简化方程<img src='https://img2.soutiyun.com/ask/2021-01-13/979381219766245.png' />
已知两个线性变换<img src='https://img2.soutiyun.com/ask/2020-07-24/964447450539867.png' />，求从<img src='https://img2.soutiyun.com/ask/2020-07-24/964447482729708.png' />到<img src='https://img2.soutiyun.com/ask/2020-07-24/964447490132131.png' />的线性变换。
试证明下列函数满足拉普拉斯方程：<img src='https://img2.soutiyun.com/ask/2019-06-18/929711665151155.png' />
<img src='https://img2.soutiyun.com/latex/latex.action' />的特征方程为( )
已知z=lnu，<img src='https://img2.soutiyun.com/latex/latex.action' />，则<img src='https://img2.soutiyun.com/latex/latex.action' />( )
曲线<img src='https://img2.soutiyun.com/ask/2020-03-11/952816359188393.png' />的水平渐近线方程为( )。
解方程：<img src='https://img2.soutiyun.com/ask/2021-03-04/983702960447469.png' />
解方程<img src='https://img2.soutiyun.com/ask/2020-08-13/966159242822924.png' />
已知微分方程<img src='https://img2.soutiyun.com/shangxueba/ask/17664001-17667000/17666030/2015102914210098816.jpg' />的一个特解为<img src='https://img2.soutiyun.com/shangxueba/ask/17664001-17667000/17666030/2015102914210098816.jpg' />，则此微分方程的通解是（）．
过点M（3，-2，1）且与直线<img src='https://img2.soutiyun.com/shangxueba/ask/18729001-18732000/18730661/2016071514231735481.jpg' />平行的直线方程为（）<img src='https://img2.soutiyun.com/shangxueba/ask/18729001-18732000/18730661/2016071514234648431.jpg' />
设<img src='https://img2.soutiyun.com/shangxueba/ask/51291001-51294000/51293683/975264374908477.png' />是n维实向量,且<img src='https://img2.soutiyun.com/shangxueba/ask/51291001-51294000/51293683/975264387229182.png' />战性无关,<img src='https://img2.soutiyun.com/shangxueba/ask/51291001-51294000/51293683/975264401121976.png' /><img src='https://img2.soutiyun.com/shangxueba/ask/51291001-51294000/51293683/975264415373792.png' />是线性方程组
若向量β不能由<img src='https://img2.soutiyun.com/ask/2021-01-01/978361429025286.png' />线性表示，则向量组<img src='https://img2.soutiyun.com/ask/2021-01-01/978361441040973.png' />线性无关()此题为判断题(对，错)。
求解差分方程:<img src='https://img2.soutiyun.com/ask/2020-12-17/977053448502449.png' />
试用范德瓦耳斯方程计算密闭于容器内质量为2.2kg 的CO2的压强。设容积为30x10^-3m^3,温度为27℃。如把CO2视为理想气体,结果又如何？已知CO2的范德瓦耳斯常量<img src='https://img2.soutiyun.com/ask/2020-07-16/963757967873683.png' />。
