Question: 6 . For any language L over { 0 , 1 } let Lr = { wr | w in L } . If L

6. For any language L over {0,1} let Lr ={wr |w in L}. If L is regular show that Lr is also regular.
7. A language is said to be a palindromic language if L = Lr ; show that there is a decision algorithm for
this.
8. Suppose we know that L1 L2 and L1 are regular. Can we conclude from this that L2 is regular ?

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