Предмет: Алгебра, автор: 2hkwyspd22

Вычислите пределы следующих функций. Два примера пожалуйста

Приложения:

MizoriesKun: Эх тут же их не два

Ответы

Автор ответа: sangers1959
1

Объяснение:

\displaystyle\\\lim\limits_{x \to -2} \frac{x^2-4}{3x^2+x-10} =|\frac{0}{0}|=   \lim\limits_{x \to -2} \frac{(x+2)(x-2)}{3x^2+6x-5x-10} = \lim\limits_{x \to -2} \frac{(x+2)(x-2)}{3x(x+2)-5(x+2)} =\\\\= \lim\limits_{x \to -2}\frac{(x+2)(x-2)}{(x+2)(3x-5)} = \lim\limits_{x \to -2} \frac{x-2}{3x-5} =\frac{-2-2}{3(-2)-5}=\frac{-4}{-6-5}  =\frac{-4}{-11}=  \frac{4}{11} .

\displaystyle\\ \lim\limits_{x \to 0}\frac{ sin(4x)}{16x}=|\frac{0}{0}|

Применяем первый замечательный предел:                              

                                         \boxed { \lim_{n \to 0}\frac{sin(n)}{n}  =1}

\displaystyle\\ \lim\limits_{x \to 0}\frac{ sin(4x)}{4*(4x)}=\frac{1}{4}* \lim\limits_{x \to 0}\frac{ sin(4x)}{4x }=\frac{1}{4}*1=\frac{1}{4} .

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