Homework SourseR1 Solution1 If R1 and R2 are regular expressions then R1 R
R1 ![R1 Solution[1] If R1 and R2 are regular expressions, then R1 | R2 (also written as R1 U R2 or R1 + R2) is also a regular expression. [2] If R1 and R2 are regul](/WebImages/36/r1-solution1-if-r1-and-r2-are-regular-expressions-then-r1-r-1106965-1761586086-0.webp "R1 Solution[1] If R1 and R2 are regular expressions, then R1 | R2 (also written as R1 U R2 or R1 + R2) is also a regular expression. [2] If R1 and R2 are regul")
Solution
[1] If R1 and R2 are regular expressions, then R1 | R2 (also written as R1 U R2 or R1 + R2) is also a regular expression.
[2] If R1 and R2 are regular expressions, then R1R2 (also written as R1.R2) is also a regular expression.
[3] If R1 is a regular expression, then R1* (the Kleene closure of R1) is also a regular expression.
[A] TRUE
[B] TRUE
[C] TRUE
[D] TRUE
[E] TRUE
