Question: (a) Verify that the subsets S = {s, w] and T = {s, v, x] are subrings of the ring R in Example 14.6. (The

(a) Verify that the subsets S = {s, w] and T = {s, v, x] are subrings of the ring R in Example 14.6. (The binary operations for the elements of S, T are those given in Table 14.3.)
b) Are the subrings in part (a) ideals of R?

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