   Chapter 12.1, Problem 9ES ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193

#### Solutions

Chapter
Section ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193
Textbook Problem
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# In 7—9, add parentheses to emphasize the order of precedence in the given expressions. 9. ( x | y z * ) * ( y x | ( y z ) * z )

To determine

Add parentheses to make he order of precedence clear in the given expressions.

(x|yz*)*(yx|(yz)*z)

Explanation

Given information:

Parenthesis means enclosure of algebraic variables.

Concept used:

The given question has to be solved according to the order of precedence for elimination of parentheses in regular expression. The highest preference is given to *, concatenations is next and | is lowest.

Calculation:

The given question has to be solved according to the order of precedence to eliminate parentheses in regular expression .The highest preference is given to *, concatenation is next and | is lowest it is required to put parentheses to make order of precedence clear in the expression (x|yz*)*(yx|(yz)*z). Following the order of precedence as above mentioned (understanding that the order is for elimination of parentheses)

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