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proof-a-b-c-a-c-b-c-




Question Number 19554 by Nayon last updated on 12/Aug/17
proof (a^− +b^− ).c^− =a^− .c^− +b^− .c^−
$${proof}\:\left(\overset{−} {{a}}+\overset{−} {{b}}\right).\overset{−} {{c}}=\overset{−} {{a}}.\overset{−} {{c}}+\overset{−} {{b}}.\overset{−} {{c}} \\ $$

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