Предмет: Алгебра, автор: 147839

найдите наименьшее и наибольшие значение функции
y=3x4+4x3+1 на отрезке [-2;1]

Ответы

Автор ответа: Mikki25112001

Для начала найдем критические точки. Ими будут концы отрезка и точки, в которых производная от у равна нулю, то есть
3х (2)-12х+9=0
х (2)-4х+3=0
Д=16-12=4
х=(4-2)/2=1 или х=3

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