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Can someone help me with #12 a) b) c) and d) and explain please! thank you!

c) OD (c) Find Au. (e) Are A and B disjoint? (B) Find AB (d) Find B no. 11. Let C = {a, b, c, dy and D= {d, e, f}. (a) Find C

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12 O A = { d , XEIR and 22-3x+2=0 ? And BEP D, XEIR and 2-2x+1=0? 0x2 + x +CCO x= -b = I J 62_4ac za so 22-32+ 2 = 0 = x= - -Similarly 22-23 +1 =0 x = -(-2) + 1 4-401921 2 = 2 so a x = 1 By © and B = {2,2018 and x=13 C - so A={1,23 B = 13- NOW COMING TO OUR QUESTION & clo find and ? AnB = {1,23 n 123 - [ AnB = 243 (2) Find AUB ? AUB = {1,23 l (3) Find A-B ? A-Bas anB = {13 (0) AUB = 21,23 (c) A-B = 223 B-A = (d) $={ 3 = Empty set

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