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Homework Help: Integration of (cosecx)^3 without using integration by parts

  1. Dec 5, 2013 #1
    1. The problem statement, all variables and given/known data


    Can anyone help me integrating (cosecx)^3 without using integration by parts?

    2. Relevant equations



    3. The attempt at a solution

    i couldn't get a clue how to do it,i used fundamental identity but always ended up like

    [∫(cosecx) dx] + [(∫(cotx)^2 . (cosecx) dx]


    the left one will be simply reciprocal rule,but what about [(∫(cotx)^2 . (cosecx) dx] ??
     
  2. jcsd
  3. Dec 5, 2013 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    hi kashan123999! :smile:

    trig substitution? :wink:
     
  4. Dec 5, 2013 #3
    o hello sir hope you are doing good :) ahan i will try :)
     
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