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pavelmorozov6
@pavelmorozov6
August 2022
1
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решите не равенство методом интервалов {4/х+4}+{1/х+1}>1
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lidusya13
Если я правильно поняла, то:
(4х+4+х+4-х^2-х-4х-4)/(х+4)(х+1)>0;
(-х^2+4)/(х+4)(х+1)>0;
(х-2)(х+2)/(х+4)(х+1)<0;
х=2;х=-2;х не =-4;х не =-1;
_____-4________-2________-1_______2
+. - +. -
(-4;-2) (-1;2)
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Answers & Comments
(4х+4+х+4-х^2-х-4х-4)/(х+4)(х+1)>0;
(-х^2+4)/(х+4)(х+1)>0;
(х-2)(х+2)/(х+4)(х+1)<0;
х=2;х=-2;х не =-4;х не =-1;
_____-4________-2________-1_______2
+. - +. -
(-4;-2) (-1;2)