Artificial intelligence
In LISP, the function X (x). (2x+l) would be rendered as

None of these
(lambda (x) (+(*2 x)l))
(* lambda(x) (+2x1)
(+ lambda (x) 1 (*2x))
(lambda (x) (+1 (* 2x)

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Artificial intelligence
A heuristic is a way of trying __________

To compare two nodes in a search tree to see if one is better than the other is
All of the mentioned
To discover something or an idea embedded in a program
To search and measure how far a node in a search tree seems to be from a goal

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