Question: (c) (8pts) Give a regular expression for the following languages. The alphabet is {x,y}. - L1={ww begins with y ends with x} - L2={ww the

(c) (8pts) Give a regular expression for the following languages. The alphabet is {x,y}. - L1={ww begins with y ends with x} - L2={ww the length of w is at most 4} - L3={ww starts with a y and has odd length, or starts with a x and has even length } - L4={w is any string except x and yy}

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