Define sets as follows:

J= {3,6,7,1}, K = {4,3, {7}}, L= {0,5,10}, M = {1,2,3,8}, N = {{5}, {8}, {10}}.

Find the following sets.

(a) J n K.

(b) (JUN) M.

(c) (P(L) n N) × K.

(d) {xy x € J, y € L}.