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Автор - jojofett

Определите критические точки функции:
а)F(x) = x^3 - 9x
б)F(x) = - 2/x

Ответ

Автор - Alyonyshka1999
a). F’(x)=3x^2-9=0
x^2=3
x=+-3

б). F’(x)=2/x^2=0
(x не равно 0)
x=0 - критическая точка

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