Question: subscript

Question:subscript

Steph123 92 Maple

Hi,

I was wondering if there is a way to return only the subscript of an element in a sequence.

Essentially I have something like t:=a[[1,2]] and I want the list [1,2] to be returned. I can't think of anyway to do this. For instance solve(t=a_x,x)...

 

Any help would be appreciated.

 

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