Question

Let L = {x|x = yz, y ∈ {a} ∗ ,z ∈ {Λ,b,bb}}

Let L1 = {x|x ∈ L,|x| ≤ 4}.

List all the strings in L1.

List all the strings of the following language:

L = {x|x ∈ {0,1} ∗ and |x| = 4 and x contains 01 as substring}

Answer 1

y = {a}* means y can contain any number of a's
z = {^, b,bb} means z can be either empty, b or bb.

Saturday {ulx=92g 10 dist of stringe in 11 sbings of longth 12 e 3 1 striagp of longlh 1 2 a Ab {a, b) b 4 2 1/ Stings of losngh 3 2 5 aaA aa -ab ab 7 aa, ab, bb3 22 Sunday

/Striog of longlh Monday aaaA- aaa aa b abb abb aab aaa, aab, abbj daaa A aaab Eaabb aaa b aa bb aaaa, aaab, aabb L E,a, byaa ab, bb, aaa, aab,abb3 aaaa, aaa baa bs 17

uesday Lxln efo, and tnl4 and n conten Subulring the strngs of lingth are listed belas OOO IO OI 110 1 1 6 1 1 L Contahnd hose staings which has olas subAting Le0bol, oolo, 0011 0100, 0101 ol 10 OL1I, lool, to lo, lo1l, 11ol AP Su 1 8 15 22 On

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