[20pts] Problem #4 Definition: The Symmetric Difference of two sets A, B, written SD(A, B), is their union without (minus) their intersection, that is: SD(A, B) = (AUB) _ (A n B) = (A-B) (B-A) = (Ar Bcjv (B n AC) Given = {a, b, c), consider the following finite languages (sets) in L| = {aa, ba, b, ac, cb); L2 = {b, aa, a, cb); L3 = {bc, ab, bb) [5pts] (i) Write the language L,--Li [5pts] (ii) Write the language Ls SD(LI, L2) [10pts! (ii) 1 ps) Write the sets L, - SDLLs)ISpts) Briefy explain what happened (if any)