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story12
@story12
September 2021
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Напишите количество целых корней неравенства :
a) -(x+7)*(x-12)>0
b) (x-2)*(x-4)<0
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sedinalana
Verified answer
A
x=-4 x=12
x∈(-4;12)
x={-3;-2;-1;0;1;2;3;4;5;6;7;8;9;10;11}
Ответ 15 целых корней
б
x=2 x=4
x∈(2;4)
x=3
Ответ 1 целый корень
2 votes
Thanks 1
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Answers & Comments
Verified answer
Ax=-4 x=12
x∈(-4;12)
x={-3;-2;-1;0;1;2;3;4;5;6;7;8;9;10;11}
Ответ 15 целых корней
б
x=2 x=4
x∈(2;4)
x=3
Ответ 1 целый корень