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    Question

    If z + (1/z) = 2 then find z105

    + 1/(z105) = ?
    A 1 Correct Answer Incorrect Answer
    C 2 Correct Answer Incorrect Answer
    D 3 Correct Answer Incorrect Answer

    Solution

    z + 1/z = 2 then z =1 So z105 + 1/z105 = 1105 + 1/1105 = 1+1 = 2 ` `

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