Предмет: Алгебра, автор: katia55

Відомо  , що m >n  / Яке з наведених  тверджень  хибне ? 
1 ) m - 2 >n- 2 
 2)  2m > 2n 
3)m +2 > n + 2
4 )-2m >-2n 

Ответы

Автор ответа: dtnth
0
1)вірно
2)вірно
3) вірно
4) хибно (при множенні на відмємне число знак нерівності міняється на протилежний)
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