Предмет: Алгебра, автор: неуч12

помогите решить неравенство f¹(x)≥0. если f(x)=⅓x^3-25x

Ответы

Автор ответа: Milli205
0

f`=x^2-25=(x-5)(x+5)

     -5             +5

+             -                +

 f¹(x)≥0   xe(-oo,-5]U[5,+oo)

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