L={WX$W^{R}$ / W,X$\epsilon (a+b)^{*}$.}
L={XW$W^{R}$ / W,X$\epsilon (a+b)^{*}$.}
l={W$W^{R}$X /W,X $\epsilon (a+b)^{*}$.}
which of the above are REGULAR LANGUAGES.?
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I think all are regular
I)w=$\epsilon$ then w^r=$\epsilon$ and x=$(a+b)^{*}$ // it accept complete language so it is regular.
same as for remaining problems also.am i ryt???