Final answer:
The establishment of three branches of the U.S. government exemplifies the separation of powers, ensuring checks and balances among legislative, executive, and judicial functions.
Step-by-step explanation:
The establishment of three branches of government in the United States is an example of separation of powers. This concept was implemented to prevent any one branch from becoming too powerful and to ensure a system of checks and balances. Each branch has distinct responsibilities: the Legislative branch is in charge of making laws, the Executive branch enforces the laws, and the Judicial branch interprets the laws.