Question: Help me !

when i run a program that returns a expression, example :

f=3%1 + 2 cos(phi2 + phi3)
%1 := sin(phi3 + phi4 + phi2)

How to return f =3sin(phi3 + phi4 + phi2)+2 cos(phi2 + phi3)

I'm using MAPLE TOOLBOX FOR MATLAB, run in Matlab windown.

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