• 2022-05-29
    利用留数计算下列各积分:[tex=7.786x3.286]rZTMQQsWUkbhN5DqkYX4cABE5xlci+RTY7vMWx9HF/ysogd9TYBj2CsfIncwjauktqy0uKv+jd1PUfsP62u3aw==[/tex];[br][/br]分析 利用留数计算复积分,一般先要求出被积函数在积分路径内部的孤立奇点.判定类型,计算出奇点处的留数,然后应用留数定理便可得到所求的积分值.
  • 解   被积函数 [tex=6.643x3.286]NwMqUMg9t6pXzqlfCE0mJh4F7lxG4d31uBQqOhkjqOeuKVj+dWrtXqnV+wqkvKiUkXEI3Vw4JO4Hdg4W0VK2gQ==[/tex] 在 [tex=2.357x1.357]1F4Ww3VEqCH9uJgIXO+q8Q==[/tex]内有孤立奇点 : [tex=0.5x1.0]XY6YYp8hrFkvsD3cyFa49A==[/tex](一阶极点), - i( 七阶极点), 由公式[tex=18.714x3.286]79Wd/JsaQKi3RBB3vwr83wgo/nM+Rr9m404wq7ReC3h8AkaPbrH7uau09B0OOvksKHzWIOz1xnFo3YLlh5Gmobs+BDGfuvAHswx0IRNcT2FFox99TxXQW8xAWnw2dEyAVdwl+sH8bgbaRoKvJ0VZNak2T8wb/1u5TGnARiNz+lo=[/tex]又[tex=21.071x16.214]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[/tex]即有[tex=15.571x2.786]79Wd/JsaQKi3RBB3vwr830yrdaq6n1XSAdWa6DPY0dQV63IzjcfiKnZZU651Yfh+Scx7biNA+6YgW921J3Zn2xfhE0Sr28gM9NXNNhjXPBBfAJ/CBfWg0RpsUavDMakJfioDY7svVchNSXQ6KaCkxg==[/tex]由留数定理[tex=22.286x3.357]zD05R9YkdWK301PIpC5BtyS6SeCEbo60pqHIjjsdySDX4bqsJzlyJTSG8wpJH4z8dp8iVqJoPu+wlhysW9HnoB9RQW87osrmdFNFtt7eHq5NcF/jz4FSRkcrVqt6/vZVsoWTEepT2xCx64AJenXfKjvXVgT+Ovwb2bh4TWiW5iu32BoJLzn7PhMzi7OodjDDcljmNCcnSs5PgD4SZdDo8mIM1nql7XzqKTQ9NwYfcuJ7+oQCRr6FqRXingIufeKPhJJePO7KvmCFJN70MM9PEQ==[/tex]

    举一反三

    内容

    • 0

       利用留数定理计算下列积分:  [tex=5.857x2.786]WZFZW8bLaQzUlWtILGi4lhf8mMDMeFADYfpb7UQGckbpq4qxrih3lRCxeaI6QSS3[/tex][br][/br]

    • 1

       利用留数定理计算下列积分:   [tex=8.5x2.786]K3118ouU7vsF15ggWM2kbepUaimFlMcrU5z5ob8lRm3Loxpsg2mEIgzcf7Sf2O2AoKo5T5e4UymGWaSnvOR4iQ==[/tex][br][/br] 

    • 2

       利用留数定理计算下列积分:  [tex=6.357x2.786]iSd92wPIStHdOrs6Yvg07jXP5LPQOsQx8gZGFc0s6hZoTr/xw5eMgPZTpbafQzMlHsn96LBareWi7V7tpS9fJQ==[/tex][br][/br] 

    • 3

       利用留数定理计算下列积分:  [tex=7.929x2.857]K3118ouU7vsF15ggWM2kbVLbdO2y5e2K3mySnGD23EPAn0Xj92n6EhujIgF6ZaHjtRRXybFpeH9FiNdc804i047WGOgnU44JgTPFX5LuzSo=[/tex][br][/br] [br][/br]

    • 4

      利用留数定理计算积分:[tex=6.071x2.786]RI4S8fCpw2HQSHsM4ujcX1gj5IgL60Pe7wnO94tqfeu0RBMzQH2LdwQu4vaqmZ8a[/tex].