The functional division of power among the legislative, executive and judicial branches of government is the

The answer is: Separation of powers  

Explanation:

The model of separation of powers, also known as trias politica model, involves the division of the state government into separate branches having independent power and responsibility. The three branches are legislature, executive, and judiciary.

Therefore, this model involves the division of power and responsibilities into the given branches and creates balance as each branch can check or limit the other branches.

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