Question: a. Write out the operation table for G = [{1, -1, i, -}; -] where i is the complex number for which ? = -1.

a. Write out the operation table for G = [{1, -1, i, -}; -] where i is the complex number for which ? = -1. Show that G is isomorphic to [Z4; +4] . b. Solve x2 = -1 in G by first translating the equation to Z4 , solving the equation in Z4, and then translating back to G

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