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    Congruences : Multiplicative Inverse

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    In Z135, the element [4] is a unit. Why? Find the multiplicative inverse [4]^-1

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    https://brainmass.com/math/graphs-and-functions/congruences-multiplicative-inverse-28892

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    Solution Preview

    Please see the attachment.

    Proof:
    Since the greatest common divisor of and ...

    Solution Summary

    A multiplicative inverse is found. The solution is detailed and well presented.

    $2.19

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