Answer / chaitanya

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Explain what is backtracking in Prolog?

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 Explain why matching variable is important in Prolog? What is the method to match variables?

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 What is the output of the given statement? * (defstruct circle (radius 0)) * (defun area (figure) (cond ((circle-p figure) (* pi (expt (circle-radius figure) 2))))) * (setf circle (make-circle :radius 11)) * (area circle) a) 44 b) 380 c) 382 d) 380.132

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What is a data type in which expressions are stored in places identified by integer indexes in LISP? a) Structure b) List c) Array d) None of the mentioned

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Which is used to represent the prompt in lisp? a) # b) $ c) & d) *

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 What is the process of reserving a place in computer memory to store a value for a symbol? a) Storing b) Ranging c) Binding d) None of the mentioned

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 What is the output of the given statement? * (defstruct person (sex nil) (personality ‘nice)) * (setf person-instance-1 (make-person)) * (setf person-instance-2 (make-person :sex ‘female)) * (person-personality person-instance-2) a) Female b) Nice c) Person d) Both a & b

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 Explain what is the importance of the hash table in LISP?

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Explain what is the difference between bagof/3 and setof/3 predicate in Prolog?

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 Explain what is setq is used for in LISP?

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 Why in prolog it is said that Program and Data are the same thing?

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 What is the output of the following statement? * ( first (rest (first ‘((a b) (c d))))) a) a b) b c) c d) d

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