Предмет: Математика, автор: mitin7092

найдите минимум функций у=х^3-7х^2+16х-12

Ответы

Автор ответа: sedinalana

y`=3x²-14x+16=0
D=196-192=4
x1=(14-2)/6=2
x2=(14+2)/6=8/3
+ _ +
---------------(2)-------------(2 2/3)--------------
min
y(8/3)=512/27-448/9+128/3-12=(512-1344+1152--324)/27=-4/27

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