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4. Let (I be the set of complex numbers Find the set U4 of complex solutions of the equation 2' = 1. The elements of

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4. Let (I be the set of complex numbers Find the set U4 of complex solutions of the equation 2' = 1. The elements of U4 are called the fourth roots of uniy. Show that multiplication in (I is an induced operation on U4. Give the operation table of U4 under this induced operation

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