0 votes 0 votes Shashi Shekhar 1 asked Dec 10, 2018 Shashi Shekhar 1 417 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Shaik Masthan commented Dec 10, 2018 reply Follow Share there is no need of image, you can type the question...So, first edit your question.... it is not divide operator, it is | symbol, which is used in the meaning of "or" in TOC. ===> L(r) | L(s) = L(r) ∪ L(s) 0 votes 0 votes Hradesh patel commented Dec 11, 2018 reply Follow Share Option 3 is correct ???? Plz check 0 votes 0 votes Shaik Masthan commented Dec 11, 2018 reply Follow Share option c is correct let r = 0* and s = 1* L(r) = {∈,0,00,000,.....} L(s) = {∈,1,11,111,1111,.....} r . s = 0* 1* = {∈,0,00,000,.... 1,11,111,1111,.... 01,011,0111,... 001,0011,00111,......} what is L(r) . L(s) = {∈,0,00,000,.....}. {∈,1,11,111,1111,.....} = {∈,0,00,000,.... 1,11,111,1111,.... 01,011,0111,... 001,0011,00111,......} = r . s 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes r+s will represent L(r)UL(s) Priyanka Agarwal answered Dec 10, 2018 Priyanka Agarwal comment Share Follow See 1 comment See all 1 1 comment reply Shashi Shekhar 1 commented Dec 10, 2018 reply Follow Share this is not required , does l(r)/l(s) represent l(R)Ul(S)? 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes @shekhar see this link https://www.tutorialspoint.com/compiler_design/compiler_design_regular_expressions.htm Aman Juyal answered Dec 11, 2018 Aman Juyal comment Share Follow See all 0 reply Please log in or register to add a comment.