秋福師常微分方程在線作業(yè)二

(判斷題)1:A:錯(cuò)誤B:正確正確答案:(判斷題)2:A:錯(cuò)誤B:正確正確答案:(判斷題)3:A:錯(cuò)誤B:正確正確答案:(判斷題)4:A:錯(cuò)誤B:正確正確答案:(判斷題)5:A:錯(cuò)誤B:正確正確答案:(判斷題)6:x^2+y^2=1是方程dy/dx=-x/y通解A:錯(cuò)誤B:正確正確答案:(判斷題)7:A:錯(cuò)誤B:正確正確答案:(判斷題)8:A:錯(cuò)誤B:正確正確答案:(判斷題)9:齊次線性微分方程組dY/dx=A(x)Y線性無關(guān)解個(gè)數(shù)不能多于n個(gè).A:錯(cuò)誤B:正確正確答案:(判斷題)10:方程組dX/dt=A(t)Xn個(gè)線性無關(guān)解稱之為dX/dt=A(t)X一個(gè)基本解組.A:錯(cuò)誤B:正確正確答案:(判斷題)11:A:錯(cuò)誤B:正確正確答案:(判斷題)12:A:錯(cuò)誤B:正確正確答案:(判斷題)13:A:錯(cuò)誤B:正確正確答案:(判斷題)14:y1和y2是y''+py'+qy=0兩個(gè)特解，則y=C1y1+C2y2是此微分方程通解A:錯(cuò)誤B:正確正確答案:(判斷題)15:A:錯(cuò)誤B:正確正確答案:(判斷題)16:A:錯(cuò)誤B:正確正確答案:(判斷題)17:有些非齊次線性微分方程能夠用比較系數(shù)法來解A:錯(cuò)誤B:正確正確答案:(判斷題)18:線性方程dy/dx=p(x)y+Q(x)只有與y關(guān)于積分因子。A:錯(cuò)誤B:正確正確答案:(判斷題)19:函數(shù)sinx和cosx在任何區(qū)間上是線性無關(guān)A:錯(cuò)誤B:正確正確答案:(判斷題)20:A:錯(cuò)誤B:正確正確答案:(判斷題)21:dy/dx=(x+y)/(x-y)是一階齊次方程。A:錯(cuò)誤B:正確正確答案:(判斷題)22:A:錯(cuò)誤B:正確正確答案:(判斷題)23:A:錯(cuò)誤B:正確正確答案:(判斷題)24:若A為n×n矩陣，則對任意常數(shù)c1,c2，有exp(c1A+c2A）=expc1A·expc2AA:錯(cuò)誤B:正確正確答案:(判斷題)25:題目如圖A:錯(cuò)誤B:正確正確答案:(判斷題)26:A:錯(cuò)誤B:正確正確答案:(判斷題)27:A:錯(cuò)誤B:正確正確答案:(判斷題)28:A:錯(cuò)誤B:正確正確答案:(判斷題)29:A:錯(cuò)誤B:正確正確答案:(判斷題)30:方程x''+x=tant是齊次線性方程A:錯(cuò)誤B:正確正確答案:(判斷題)31:方程ydx-xdy=0一個(gè)積分因子是1/x^2。A:錯(cuò)誤B:正確正確答案:(判斷題)32:A:錯(cuò)誤B:正確正確答案:(判斷題)33:A:錯(cuò)誤B:正確正確答案:(判斷題)34:若y=φ1(x),y=φ2(x)是二階線性齊次微分方程基本解組，則它們線性無關(guān).A:錯(cuò)誤B:正確正確答案:(判斷題)35:題目如圖A:錯(cuò)誤B:正確正確答案:(判斷題)36:A:錯(cuò)誤B:正確正確答案:(判斷題)37:A:錯(cuò)誤B:正確正確答案:(判斷題)38:方程y''+4y=0基本解組是cos2x,sin2x.A:錯(cuò)誤B:正確正確答案:(判斷題)39:A:錯(cuò)誤B:正確正確答案:(判斷題)40:A:錯(cuò)誤B:正確正確答案:(判斷題)41:A:錯(cuò)誤B:正確正確答案:(判斷題)42:A:錯(cuò)誤B:正確正確答案:(判斷題)43:A:錯(cuò)誤B:正確正確答案:(判斷題)44:n階齊次線性微分方程線性無關(guān)解最大個(gè)數(shù)等于nA:錯(cuò)誤B:正確正確答案:(判斷題)45:A:錯(cuò)誤B:正確正確答案:(判斷題)46:A:錯(cuò)誤B:正確正確答案:(判斷題)47:n階非齊次線性方程任意兩個(gè)解之差也是該方程解A:錯(cuò)誤B:正確正確答案:(判斷題)48:偏微分方程自變量個(gè)數(shù)不只一個(gè)A:錯(cuò)誤B:正確正確答案:(判斷題)49:A:錯(cuò)誤B:正確正確答案:(判斷題)50:A:錯(cuò)誤B:正確正確答案:(判斷題)1:A:錯(cuò)誤B:正確正確答案:(判斷題)2:A:錯(cuò)誤B:正確正確答案:(判斷題)3:A:錯(cuò)誤B:正確正確答案:(判斷題)4:A:錯(cuò)誤B:正確正確答案:(判斷題)5:A:錯(cuò)誤B:正確正確答案:(判斷題)6:x^2+y^2=1是方程dy/dx=-x/y通解A:錯(cuò)誤B:正確正確答案:(判斷題)7:A:錯(cuò)誤B:正確正確答案:(判斷題)8:A:錯(cuò)誤B:正確正確答案:(判斷題)9:齊次線性微分方程組dY/dx=A(x)Y線性無關(guān)解個(gè)數(shù)不能多于n個(gè).A:錯(cuò)誤B:正確正確答案:(判斷題)10:方程組dX/dt=A(t)Xn個(gè)線性無關(guān)解稱之為dX/dt=A(t)X一個(gè)基本解組.A:錯(cuò)誤B:正確正確答案:(判斷題)11:A:錯(cuò)誤B:正確正確答案:(判斷題)12:A:錯(cuò)誤B:正確正確答案:(判斷題)13:A:錯(cuò)誤B:正確正確答案:(判斷題)14:y1和y2是y''+py'+qy=0兩個(gè)特解，則y=C1y1+C2y2是此微分方程通解A:錯(cuò)誤B:正確正確答案:(判斷題)15:A:錯(cuò)誤B:正確正確答案:(判斷題)16:A:錯(cuò)誤B:正確正確答案:(判斷題)17:有些非齊次線性微分方程能夠用比較系數(shù)法來解A:錯(cuò)誤B:正確正確答案:(判斷題)18:線性方程dy/dx=p(x)y+Q(x)只有與y關(guān)于積分因子。A:錯(cuò)誤B:正確正確答案:(判斷題)19:函數(shù)sinx和