Question: put 'collect'-results in a function

Hello everybody

I'm new in maple and i have a problem with the command 'collect':

i have a complicated expression with sinus and cosinus and many variables. the problem is that maple does not collect all the coefficients of a variable together.

how can I solve this problem?

I want also to collect the coefficients of each variable together in a function or a variable.

how can I do this? (I'm using Maple13)

Thanks

 

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