(a) What is NP class? Give two examples which belong to NP class.(b) Determine whether the expression (x1 V T2 VT3) ^ (71 V r2 A 23) A (T1 AF2 A £3) is satisfiable.(c) How to show that 3SAT is NP-complete when we know SAT is NP-complete?

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(a) What is NP class? Give two examples which belong to NP class. (b) Determine whether the expression (x1 V T2 V T3) ^ (71 V r2 ^ 13) ^ (F1 A F2 ^ r3) is satisfiable. (c) How to show that 3SAT is NP-complete when we know SAT is NP-complete?

(a) What is NP class? Give two examples which belong to NP class. (b) Determine whether the expression (x1 V T2 V T3) ^ (71 V r2 ^ 13) ^ (F1 A F2 ^ r3) is satisfiable. (c) How to show that 3SAT is NP-complete when we know SAT is NP-complete?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Predicates

A predicate is a function defined with set of variables, which returns the result True or False. The output of a predicate is a Boolean value as a response when given a set of parameters:

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(a) What is NP class? Give two examples which belong to NP class.
(b) Determine whether the expression (x1 V T2 VT3) ^ (71 V r2 A 23) A (T1 AF2 A £3) is satisfiable.
(c) How to show that 3SAT is NP-complete when we know SAT is NP-complete?

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