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    I understand how to do all the integration in C4, however i get confused when i should use it.
    Are there any distinct things to look out for when approaching a question in order to get the right approach, obviously whether to use substitution or via parts. Unless of course they always give the substitution of U
    cheers, would appreciate the help!
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    Use integration by parts when you have the product of two functions.
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    (Original post by fredstar)
    I understand how to do all the integration in C4, however i get confused when i should use it.
    Are there any distinct things to look out for when approaching a question in order to get the right approach, obviously whether to use substitution or via parts. Unless of course they always give the substitution of U
    cheers, would appreciate the help!
    Just remember the trig, recognise when you can split up equations and partial fractions.
 
 
 
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Updated: June 25, 2005
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