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All of the following are equivalent exceptO (4)(y)O 4+ y04.1O 4 yASK FOR HELPUNT QUESTION

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\begin{gathered} 4y \\ (4)(y)=4y \\ 4.y=4y \\ 4+y\\e4y \\ So\text{ all are eqivalent except (4+y)} \end{gathered}

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