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

kashan123999
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Homework Statement




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

Homework Equations





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] ??
 
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hi kashan123999! :smile:

trig substitution? :wink:
 
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tiny-tim said:
hi kashan123999! :smile:

trig substitution? :wink:

o hello sir hope you are doing good :) ahan i will try :)
 

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