Question: How to simplify using subexpressions

I have a huge trigonometric expression in Maple with an approximate length of length(.)=397593353.

When I compute this expression in Matlab, I receive another expression with a much smaller length, and the reason is that Matlab is using subexpressions to calculate the main expression. However, I need to do this in Maple.

I have already tried to simplify, but it didn't work.
The maple worksheet & a screenshot of the Matlab subexpression is attached.

See below file for expression in maple (Please run the "Main.mpl" in the attached file.):

And part of the expression in Matlab is shown in the below picture

Where the subexpressions (again in Matlab) are shown below:

Please Wait...