【单选题】
下列微分方程是线性的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/BE7DADA5DC2CEF5E3BEF635723609A88.png title=7Y7X[B`B`YJ`50(BUA9ZMVJ.png alt=7Y7X[B`B`YJ`50(BUA9ZMVJ.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/E35CBD3EEDAC70CE691E66F129FAAFDA.png title=9VQW~`T%O8JZC_HRQ65`FDB.png alt=9VQW~`T%O8JZC_HRQ65`FDB.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B7B760708E09AF07B2C8837DF70C2589.png title=CD{A(O$T56~A}AUWCJ~W75R.png alt=CD{A(O$T56~A}AUWCJ~W75R.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/94CE66F44A257D96B3E720C101117100.png title=I7VNJ}9$D~3}[{@`S~4RLR0.png alt=I7VNJ}9$D~3}[{@`S~4RLR0.png/>
【单选题】
若<img src=https://huaweicloudobs.ahjxjy.cn/35EE784092FF7ACB6F7DD4A89C24329D.png title=QQ图片20160224221501.png alt=QQ图片20160224221501.png/>是二阶非齐次线性方程<img src=https://huaweicloudobs.ahjxjy.cn/BF80E75DC88661040CEB417E72A89625.png title=QQ图片20160224221516.png alt=QQ图片20160224221516.png/>的三个线性无关的特解,<img src=https://huaweicloudobs.ahjxjy.cn/33E05B95D74C8390CB16B77459FF34F7.png title=QQ图片20160224221546.png alt=QQ图片20160224221546.png/>为任意常数,则该方程的通解为( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/58793071810DC05D4132755BAA68B6C1.png title=QQ图片20160224221602.png alt=QQ图片20160224221602.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/BD6314F2A0B44ECEBDA7804F681D165D.png title=QQ图片20160224221627.png alt=QQ图片20160224221627.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/36BB040484C742B66EA68C10B95D7011.png title=QQ图片20160224221639.png alt=QQ图片20160224221639.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/F119C09F959A0EEB5FB5079F2DE597EB.png title=QQ图片20160224221651.png alt=QQ图片20160224221651.png/>
【单选题】
下列微分方程是线性的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/BE7DADA5DC2CEF5E3BEF635723609A88.png title=7Y7X[B`B`YJ`50(BUA9ZMVJ.png alt=7Y7X[B`B`YJ`50(BUA9ZMVJ.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/E35CBD3EEDAC70CE691E66F129FAAFDA.png title=9VQW~`T%O8JZC_HRQ65`FDB.png alt=9VQW~`T%O8JZC_HRQ65`FDB.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B7B760708E09AF07B2C8837DF70C2589.png title=CD{A(O$T56~A}AUWCJ~W75R.png alt=CD{A(O$T56~A}AUWCJ~W75R.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/94CE66F44A257D96B3E720C101117100.png title=I7VNJ}9$D~3}[{@`S~4RLR0.png alt=I7VNJ}9$D~3}[{@`S~4RLR0.png/>
【单选题】
下列微分方程中是线性方程的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/538DC78DFD1EF553D74C41A4131824E3.png title=TZCU`(NG15E0O25O8YRK%{Q.png alt=TZCU`(NG15E0O25O8YRK%{Q.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/21422698CF0F55B4934382411DFF99D3.png title=2@I}([~4E@B}CAY_`(TJ(FT.png alt=2@I}([~4E@B}CAY_`(TJ(FT.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/56F50984A5BF03CD41E8E32733242830.png title=BBFNI(E$6Y9F`XB}TJ){(_O.png alt=BBFNI(E$6Y9F`XB}TJ){(_O.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/08350B5CFE2057C6699FB3C059382905.png title=G$JRDI}P@[E~JTF{E40G$]5.png alt=G$JRDI}P@[E~JTF{E40G$]5.png/>
【单选题】
微分方程<img src=https://huaweicloudobs.ahjxjy.cn/12225FB1DC37B2F2F1CB9F927DF3A25B.png title=(99YYCW[XI`6{1TSUD%DBL9.png alt=(99YYCW[XI`6{1TSUD%DBL9.png/>的通解<img src=https://huaweicloudobs.ahjxjy.cn/ED13234A1B91AA11BDCDE67E3DDBFBE9.png title=H{J]{KN}]5Q{SVAUQXA$7SG.png alt=H{J]{KN}]5Q{SVAUQXA$7SG.png/>为( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/C3B965C2336B8EAC06A6286A3C81BD21.png title=~~[MS9DZ)7O%Z9OL0J~2I7T.png alt=~~[MS9DZ)7O%Z9OL0J~2I7T.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/2378775CBFE769FCF1D4B4E57AE2434C.png title=N1(D]5I7Q(J4%%JO2P3{[`N.png alt=N1(D]5I7Q(J4%%JO2P3{[`N.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/2BCF30648B51450288CD3D731FD96352.png title=Y{CDVS4E)REOL[8`O(9F1XY.png alt=Y{CDVS4E)REOL[8`O(9F1XY.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B445CDACE8238F3AA4710AB449E88CA1.png title=ZPHQ6AK$6_A403]}[[4S6EE.png alt=ZPHQ6AK$6_A403]}[[4S6EE.png/>
【单选题】
下列方程中为常微分方程的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/76EE3344F4B3F0A400C563E1B75A05C5.png title=[SEKXVFY5BOH_UDV{CX8M[1.png alt=[SEKXVFY5BOH_UDV{CX8M[1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/D2DA254C17523F281086022731C2A350.png title=DSX_H$AY$PVE[]DGSEMDT92.png alt=DSX_H$AY$PVE[]DGSEMDT92.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/772A07E0D831407BCCD6B1F9D797AB76.png title=]}7)$G$DUS1LB24{_(9`R@X.png alt=]}7)$G$DUS1LB24{_(9`R@X.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/46E6359E976B296C22C90C2B12285D14.png title=OH~JT`{B9@%]}CGWWIST`RK.png alt=OH~JT`{B9@%]}CGWWIST`RK.png/>
【单选题】
设二阶线性非齐次方程<img src=https://huaweicloudobs.ahjxjy.cn/BF80E75DC88661040CEB417E72A89625.png title=QQ图片20160224221516.png alt=QQ图片20160224221516.png/>有三个特解<img src=https://huaweicloudobs.ahjxjy.cn/30ADB8C932A284BCD6D6FD43634CD976.png title=QQ图片20160224222755.png alt=QQ图片20160224222755.png/>,则则其通解为( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/79BDF54DD0737592B3A67EA72A440242.png title=QQ图片20160224222917.png alt=QQ图片20160224222917.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/2805ACB453C0781F902D9FA252A1D5FD.png title=QQ图片20160224222932.png alt=QQ图片20160224222932.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B6BB60DE9AB98BB12B14907339048EC1.png title=QQ图片20160224222949.png alt=QQ图片20160224222949.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/33E1A495886946BD8344FAA0C92C665A.png title=QQ图片20160224223005.png alt=QQ图片20160224223005.png/>
【单选题】
已知<img src=https://huaweicloudobs.ahjxjy.cn/250171269DE1EAEA9FE59DEE8BFE33BA.png title=Z8AQFF}MI1N9$@ISTBVL[_6.png alt=Z8AQFF}MI1N9$@ISTBVL[_6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/E02D89F335D5B0BEDBCB24A25DDEF177.png title=%1PYP~8`A`P2XO0XL}Q98%2.png alt=%1PYP~8`A`P2XO0XL}Q98%2.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/69D80B472379AEA95C4AA497F0F03B9D.png title=_U~~]((YV3SG%(XE9LBJ$MJ.png alt=_U~~]((YV3SG%(XE9LBJ$MJ.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B6855BA4D3D31E726705276A1F134D16.png title=K)K9(18JZEU0Y67$C9433KA.png alt=K)K9(18JZEU0Y67$C9433KA.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CA8375B4374044476851055918F47A75.png title=VTDX~]OQE%W4HDMGX1J20%F.png alt=VTDX~]OQE%W4HDMGX1J20%F.png/>
【单选题】
微分方程<img src=https://huaweicloudobs.ahjxjy.cn/C94D3495D48259784DE3D021F80766D2.png title=[}J)X)RXY{5G]$SR92V{~[G.png alt=[}J)X)RXY{5G]$SR92V{~[G.png/>的通解是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/6D2E567D873A9E56772FDB73652E0419.png title=0[O3[E8TEZBI7KJLZ_34$8M.png alt=0[O3[E8TEZBI7KJLZ_34$8M.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/95D3C4AF333F1CCBCB7E76264A2450E8.png title=B@AW9_)F9N$_N`K)IE{F701.png alt=B@AW9_)F9N$_N`K)IE{F701.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A5C200611195CF46B992EEF063260153.png title=OC__]UL{QA595)B_G0_4GMU.png alt=OC__]UL{QA595)B_G0_4GMU.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/382FCD2314997A0B4A709F5998C0BCF9.png title=SSR13SY0BU5V_%{{HKJ_TK2.png alt=SSR13SY0BU5V_%{{HKJ_TK2.png/>
【单选题】
下列方程是常微分方程的是( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/12103E9126D544E14AC06D83ABC68690.png title=8OTBW[X7@Q2WKDTH~DCD}9O.png alt=8OTBW[X7@Q2WKDTH~DCD}9O.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/96B6A202D02AB5BCE0940018BC088804.png title=36NGOZUQ_5A%T09%QOS5()O.png alt=36NGOZUQ_5A%T09%QOS5()O.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/9EF7820B824292764655EE85700A8457.png title=A@_2{TI1KUV(H$~Z4TLTZ_D.png alt=A@_2{TI1KUV(H$~Z4TLTZ_D.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/2A61ADB4A3D244026070805B5774D53B.png title=GJW{S0BSV3D0}8)QK0BIQUJ.png alt=GJW{S0BSV3D0}8)QK0BIQUJ.png/>