The A* search algorithm uses a _______ function to estimate the cost of reaching the goal from a given state.
- Admissible
- Cost
- Heuristic
- Informed
A* utilizes a heuristic function to estimate the cost of reaching the goal from a given state. This heuristic guides the search by providing an informed guess about the remaining cost, helping A* prioritize paths likely to lead to the optimal solution efficiently.
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