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Автор - MioRin288

Решите пожалуйста,это срочно(((

Ответ

Проверено экспертом

Автор - NNNLLL54

limlimits _{x to 0}frac{2x}{sqrt{4+x}-sqrt{4-x}}=limlimits _{x to 0}frac{2xcdot (sqrt{4+x}+sqrt{4-x})}{(4+x)-(4-x)}=limlimits _{x to 0}frac{2xcdot (sqrt{4+x}+sqrt{4-x})}{2x}=\\=sqrt{4+0}+sqrt{4-0}=2+2=4

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