十二無窮數(shù)

1、第十二章第十二章無窮級數(shù)無窮級數(shù)一.單項選擇題12.1若級數(shù)收斂，則下列級數(shù)不收斂的是()1nnu???(A)(B)(C)(D)12???nnu1(2)????nnu12????nnu2nnu???12.2下列級數(shù)級數(shù)中發(fā)散的是().(A)(B)11(1cos)????nn112sin3???nnn(C)(D)21(!)(2)!???nnn2111nnn?????12.3下列級數(shù)中收斂的是()；AB???????11nnn????111

2、nnCDnnnn??????????123??????????1211nn12.4如果級數(shù)條件收斂，則().???1nnu||1???nnuA必收斂B.必發(fā)散C.不一定收斂D.無法判斷12.5.下列級數(shù)中發(fā)散的是()A.B.C.D.?????1)1()1(nnnn)1|(|)1(1?????qqnnn????1131nn????1)1ln(nn12.6在的和函數(shù)是()????02!)1(nnnnx?????x?)(xfA.B.C.D.2

3、xe?2xe2xe??2xe?12.7下列級數(shù)中收斂的是()A.B.C.D.????1121nn????113nnn)1|(|1001????qqnn????1132nnn12.8在的和函數(shù)是()????02)!2()1(nnnnx?????x?)(xf12.17下列級數(shù)中絕對收斂的是()(A)(B)1(1)1nnn?????1(1)1nnnn?????(C)(D)11(1)ln(1)nnn??????1(1)nnn????12.18若

4、級數(shù)收斂，則().1nnu???lim(1)nnu????(A)(B)(C)(D)2011?12.19下列級數(shù)中條件收斂的是()(A)(B)111(1)nnn?????211(1)nnn????(C)(D)1(1)1nnnn?????11(1)(1)nnnn?????12.20若級數(shù)收斂，則下列級數(shù)中發(fā)散的是().1nnu???(A)(B)110nnu???101nnu????(C)(D)110nnu????1(10)nnu????12

5、.21下列級數(shù)中滿足絕對收斂的是()；ABCD1(1)1nnnn?????11(1)sinnnn????11(1)nnn????1(1)2nnnn????12.22冪級數(shù)的收斂域為().1(1)nnnxn????AB.C.D.[11]?(11]?[11)?(11)?12.23下列級數(shù)中滿足條件收斂的是()；ABCD?????112)1(nnnn?????1211)1(nnn????13)1(nnnn????11)1(nnn12.24冪級