Matematică
cucuietu1
2018-01-24 17:13:12
80a2b cu bara deasuora divizibile cu 6. dau coroana
Răspunsuri la întrebare
patrusmihai
2018-01-24 19:36:19

80a2b=80124,80220,80226,80322,80328,80424,80520,80526,80622,80628, 80724,80820,80826,80922,80928.

Andrey9999
2018-01-24 19:37:34

6/80a2b => 2/80a2b => 2/b => b apartine multimii {0,2,4,6,8} 6/80a2b => 3/80a2b => avem cazurile: 1. b=0 => a apartine {2,5,8} 2.b=2 => a apartine {0,3,6,9} 3.b=4 => a apartine {1,4,7} 4.b=6 => a apartine {2,5,8} 5.b=8 => a apartine {0,3,6,9} in concluzie, 80a2b apartine multimii {80220,80520,80820,80022,80322,80622,80922,80124,80424,80724,80226,80526,80826,80028,80328,80628,80928}

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