Question: (a) Determine A2, A3, and A4. (b) Verify that {A, A2, A3, A4} is an abelian group under ordinary matrix multiplication. (c) Prove that the

(a) Determine A2, A3, and A4.
(b) Verify that {A, A2, A3, A4} is an abelian group under ordinary matrix multiplication.
(c) Prove that the group in part (b) is isomorphic to the group shown in Table 16.6.
Let

A = 1-

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