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happyAlen
@happyAlen
July 2022
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Найти нули функции
а) у=3х-15
б) у=7х(х+4)
в)у=х2-36
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Answers & Comments
misha17112003
1) 1/4х^2 - 4 = 0
х^2 - 16 = 0
х = 4; х= -4
2) х^2 -36 <= 0
(х-6)(х+6) <= 0
х=6; х= -6
Методом интервалов получаем, что -6<= х <= 6
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Answers & Comments
х^2 - 16 = 0
х = 4; х= -4
2) х^2 -36 <= 0
(х-6)(х+6) <= 0
х=6; х= -6
Методом интервалов получаем, что -6<= х <= 6