Let N = {1,2,3} and let v E TUN as described in the table below, with...

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Let N = {1,2,3} and let v E TUN as described in the table below, with a € R. S 0| {1}| {2}| {3} | {1,2} | {1,3} | {2,3} | {1,2, 3} v(S) 0 1 0 0 3 a (a) For which value(s) of a is v is superadditive? (b) For which value(s) of a is C(v) (i) a single point (find C(v)); (ii) nonempty; (iii) empty? (c) For which value(s) of a is v superadditive and C(v) nonempty, if any such value(s) exists? Let N = {1,2,3} and let v E TUN as described in the table below, with a € R. S 0| {1}| {2}| {3} | {1,2} | {1,3} | {2,3} | {1,2, 3} v(S) 0 1 0 0 3 a (a) For which value(s) of a is v is superadditive? (b) For which value(s) of a is C(v) (i) a single point (find C(v)); (ii) nonempty; (iii) empty? (c) For which value(s) of a is v superadditive and C(v) nonempty, if any such value(s) exists?