Question: True or False. Briefly explain. 1) If L 1 and L 2 are context free, then it is possible that L 1 L 2 is

True or False. Briefly explain.

1) If L1 and L2 are context free, then it is possible that L1 L2 is not context free.

2) If L1 L2 is a context free language, then L1 and L2 must be context free.

3)The context-free languages are closed under union with the regular languages.

4)The regular languages are closed under intersection with the context-free languages.

5)The regular languages are closed under concatenation with the context-free languages.

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