Thanks in advance

Hitoru,
In the future please state what you need done with the expression you post.
For example, are you supposed to find the value for the expression when n=7 or maybe when n=2. Possible Subhotosh Khan is correct and you need to simplify it.
 
Hitoru,
In the future please state what you need done with the expression you post.
For example, are you supposed to find the value for the expression when n=7 or maybe when n=2. Possible Subhotosh Khan is correct and you need to simplify it.
Yes it said to simplify it
 
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