Please answer the following questions in the attached image (Course: discrete structures and combination analysis) :

x612x x42 a) Find the maximal elements. 24,42,28 b) Find the minimal elements. 3,4,7 c) Is there a greatest element? No. d) Is there a least element? No. e) What are the upper bounds of {3,7}, if they exist? 42 f) What are the lower bounds of {12,24}, if they exist? 6,3 g) Is this poset a lattice? Explain why or why not. No, because example pais {4,7} doesint have least cipper bound \& greatest atf lourer bound. 8. (3 marks) Are the following two graphs isomorphic? If yes, exhibit an isomorphism between them. If x612x x42 a) Find the maximal elements. 24,42,28 b) Find the minimal elements. 3,4,7 c) Is there a greatest element? No. d) Is there a least element? No. e) What are the upper bounds of {3,7}, if they exist? 42 f) What are the lower bounds of {12,24}, if they exist? 6,3 g) Is this poset a lattice? Explain why or why not. No, because example pais {4,7} doesint have least cipper bound \& greatest atf lourer bound. 8. (3 marks) Are the following two graphs isomorphic? If yes, exhibit an isomorphism between them. If