vault backup: 2022-12-02 12:36:09

This commit is contained in:
2022-12-02 12:36:09 +01:00
parent e71b6bd63a
commit a2ac232d0a
3 changed files with 41 additions and 11 deletions

View File

@@ -42,9 +42,21 @@
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@@ -110,7 +122,7 @@
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@@ -127,7 +139,7 @@
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@@ -150,7 +162,7 @@
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@@ -194,17 +206,17 @@
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View File

@@ -14,7 +14,7 @@ D_{f}\in(-\infty, 1) \cup (1,2) \cup (2,\infty)\\
\lim_{x\rightarrow1}= \lim_{x\rightarrow1}=
granica pionowa obustronna w 1 granica\ pionowa\ obustronna\ w\ 1
\end{gathered} \end{gathered}
$$ $$

View File

@@ -0,0 +1,18 @@
$$
\begin{gathered}
f(x)=\begin{cases}
\cfrac{2x^{2}-x-1}{x-1} &x\ne1\\
-1 &x = 1
\end{cases}\\\\\\
D_{f}=\mathbb{R}\\
\lim_{x\rightarrow1}\frac{2x^{2}-x-1}{x-1}=^{[\frac{0}{0}]}\lim_{x\rightarrow1}\frac{2(x-1)(x+\frac{1}{2})}{x-1}=\lim_{x\rightarrow1}2x+1=3\\
f(1)=-1\\
\Delta=1+8\\
\sqrt{\Delta}=3\\
x_{1}=1\\
x_{2}= -\frac{1}{2}
\end{gathered}
$$