Предмет: Математика, автор: ksunik1

Решите уравнение x-9x^3=0

Ответы

Автор ответа: yellok

0

x-9x³=0⇒x(1-9x²)=0 ⇒ x=0 или 1-9x²=0⇒ x=0 или 9x²=1⇒ x=0 или x²=1/9 ⇒ x=0 или x=1/3 или x=-1/3

Автор ответа: Masha031111

0

ответ: x-9x^3=0
-1/3

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