For all integers a and b, if a^2 is congruent to b^2 (mod 20), then a is congruent to b (mod 5). prove true or false
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Originally Posted by lemondonut For all integers a and b, if a^2 is congruent to b^2 (mod 20), then a is congruent to b (mod 5). prove true or false If If , then there is a constant k for which is... (1) From (1) is we derive that must be or . If then is . If then for (1) it must be... (2) ... so that ... Kind regards
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