diff --git a/.obsidian/plugins/obsidian-completr/scanned_words.txt b/.obsidian/plugins/obsidian-completr/scanned_words.txt
index c32f655..8439470 100644
--- a/.obsidian/plugins/obsidian-completr/scanned_words.txt
+++ b/.obsidian/plugins/obsidian-completr/scanned_words.txt
@@ -19742,6 +19742,7 @@ AVTtc
 Aoy
 AoY
 AUETFF
+AiSD
 Subtype
 SGw
 SI
diff --git a/.obsidian/plugins/obsidian-icon-folder/data.json b/.obsidian/plugins/obsidian-icon-folder/data.json
index 71426eb..788275d 100644
--- a/.obsidian/plugins/obsidian-icon-folder/data.json
+++ b/.obsidian/plugins/obsidian-icon-folder/data.json
@@ -5,11 +5,11 @@
     "fontSize": 16,
     "iconColor": null,
     "recentlyUsedIcons": [
+      "RiNodeTree",
+      "IbRectangleSmallWithBlocks",
       "FasBookOpen",
       "FasBolt",
-      "RiCalculatorLine",
-      "RiCalculatorFill",
-      "RiComputerFill"
+      "RiCalculatorLine"
     ],
     "recentlyUsedIconsSize": 5,
     "rules": [],
@@ -26,5 +26,7 @@
   "TI": "IbSearch",
   "PPK": "RiComputerFill",
   "Elektrotechnika": "FasBolt",
-  "EP": "FasBookOpen"
+  "EP": "FasBookOpen",
+  "TC": "IbRectangleSmallWithBlocks",
+  "AiSD": "RiNodeTree"
 }
\ No newline at end of file
diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 4f0bf80..30db5ee 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -4,50 +4,45 @@
     "type": "split",
     "children": [
       {
-        "id": "fe1fbe9e41f72241",
+        "id": "3c47caaa0679dbad",
         "type": "tabs",
         "children": [
           {
-            "id": "81d0b2145326025c",
+            "id": "a1be2d379fe1a8a8",
             "type": "leaf",
             "state": {
               "type": "markdown",
               "state": {
-                "file": "AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md",
+                "file": "AMiAL/AMiAL.md",
                 "mode": "source",
                 "source": false
               }
             }
           },
           {
-            "id": "ecc53cb8ed19425a",
+            "id": "48bc19c9cddc0dec",
             "type": "leaf",
             "state": {
               "type": "markdown",
               "state": {
-                "file": "AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md",
+                "file": "PI/Ćwiczenia/20221010123607.md",
                 "mode": "source",
                 "source": false
               }
             }
-          }
-        ]
-      },
-      {
-        "id": "17a276c831896291",
-        "type": "tabs",
-        "children": [
+          },
           {
-            "id": "0e6931af2058a8c6",
+            "id": "d7cfdfd5f6bb86cb",
             "type": "leaf",
             "state": {
-              "type": "pdf",
+              "type": "release-notes",
               "state": {
-                "file": "AMiAL/!Materiały/pochodna.pdf"
+                "currentVersion": "1.1.15"
               }
             }
           }
-        ]
+        ],
+        "currentTab": 2
       }
     ],
     "direction": "vertical"
@@ -113,7 +108,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md",
+                "file": "PI/Ćwiczenia/20221010123607.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -130,7 +125,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md",
+                "file": "PI/Ćwiczenia/20221010123607.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -153,7 +148,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md"
+                "file": "PI/Ćwiczenia/20221010123607.md"
               }
             }
           },
@@ -211,17 +206,17 @@
       "audio-recorder:Start/stop recording": false
     }
   },
-  "active": "81d0b2145326025c",
+  "active": "d7cfdfd5f6bb86cb",
   "lastOpenFiles": [
-    "AMiAL/Ćwiczenia/Zadania/Różniczki/Zadanie 1.md",
-    "AMiAL/Ćwiczenia/1 SEM/20221014121234.md",
-    "AMiAL/Ćwiczenia/Zadania/Całki/1.md",
-    "AMiAL/Ćwiczenia/Zadania/ciagi_gr/Zadanie 1.md",
-    "AMiAL/Ćwiczenia/Zadania/funkcje/Zadanie 1.md",
-    "AMiAL/Ćwiczenia/Zadania/funkcje/Zadanie 2.md",
-    "AMiAL/Ćwiczenia/Zadania/li_zesp/Zadanie 1.md",
-    "AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 1.md",
-    "AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md",
-    "AMiAL/!Materiały/pochodna.pdf"
+    "PI/Ćwiczenia/1.Rekurencja.md",
+    "PI/Ćwiczenia/Ćwiczenia.md",
+    "PI/Wykłady/1 SEM/20221014134528.md",
+    "PPK/Ćwiczenia/Ćwiczenia.md",
+    "TODO.md",
+    "Elektrotechnika/Wykład/Wykład.md",
+    "Elektrotechnika/Drawing 2023-02-01 10.06.44.excalidraw.md",
+    "Elektrotechnika/Drawing 2023-02-01 10.30.46.excalidraw.md",
+    "AiSD/AiSD.md",
+    "TC/TC.md"
   ]
 }
\ No newline at end of file
diff --git a/AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md b/AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md
index 699fdf1..d2f0749 100644
--- a/AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md	
+++ b/AMiAL/Ćwiczenia/Zadania/Pochodne/Zadanie 2.md	
@@ -12,8 +12,30 @@ $y'=\cfrac{1}{x^{2}}\cdot\left(2x^{2}-(x^{2}+4)\right)=\cfrac{x^{2}-4}{x^{2}}=1-
 $y=\cfrac{x-3}{x^{2}}$
 $y'=\cfrac{1}{x^{4}}\cdot\left(x^{2}-2x^{2}+6x\right)=\cfrac{6x-x^{2}}{x^{4}}=\cfrac{6-x}{x^3}$
 ## 5
-$y$
+$y=(\sqrt[4]{x}-\frac{1}{2})^{2}$
+$y=(x^{\frac{1}{4}}-\frac{1}{2})^{2}$
+$y'=2(\sqrt[4]{x}-\frac{1}{2})\cdot\frac{1}{4}{x}^{-\frac{3}{4}}=2(\sqrt[4]{x}-\frac{1}{2})\cdot\frac{1}{16\sqrt{x^{3}}}=\frac{2\sqrt[4]{x}-1}{16\sqrt{x^{3}}}$
+## 6
+
 ## 7
 $y=\cfrac{x^{5}+x^{3}+x}{\sqrt{x}}$
 $y'=\cfrac{1}{x}\left((x^{5}+x^{3}+x)\cdot\frac{1}{2\sqrt{x}}-(5x^{4}+3x^2+1)\cdot\sqrt{x}\right)$
-
+## 8
+$y=\sqrt[3]{\sqrt{x}x}$
+$y'=\frac-{1}{3}$
+## 9
+## 10
+$y=x\cos x$
+$y'=\cos x \cdot x-\sin x$
+## 11
+$y=x^{2}\sin x + \tan x$
+$y'=2x(\sin x)\cdot x^2\cos x+\frac{1}{\cos^{2}x}$
+## 12
+$y=\cfrac{\sin x}{x^3}$
+$y'=\frac{1}{x^{6}}\cdot \left(\sin x\cdot 3x^{2}-\cos x\cdot x^{3}\right)$
+$y'=\cfrac{\left(\sin x\cdot 3x^{2}-\cos x\cdot x^{3}\right)}{x^6}$
+$y'=\frac{3\sin x}{x^4}-\frac{\cos x}{x^{3}}$
+## 13
+$y=\sqrt{x}\ln x$
+$y'=-\cfrac{1}{2\sqrt{x}}\cdot \ln x + \cfrac{1}{x}\cdot\sqrt{x}$
+$y'=\cfrac{\sqrt{x}}{x}-\cfrac{\ln x}{2\sqrt{x}}$
diff --git a/AiSD/AiSD.md b/AiSD/AiSD.md
new file mode 100644
index 0000000..4c30483
--- /dev/null
+++ b/AiSD/AiSD.md
@@ -0,0 +1,8 @@
+# Algorytmy i Struktury Danych
+# Agnieszka Danek
+# AiSD Overview
+ 
+```ccard
+type: folder_brief_live
+```
+ 
diff --git a/TC/TC.md b/TC/TC.md
new file mode 100644
index 0000000..335bc17
--- /dev/null
+++ b/TC/TC.md
@@ -0,0 +1,10 @@
+# Technika Cyfrowa
+## Dariusz Kania
+
+
+# TC Overview
+ 
+```ccard
+type: folder_brief_live
+```
+ 
diff --git a/TC/Untitled.md b/TC/Untitled.md
new file mode 100644
index 0000000..e69de29
diff --git a/TODO.md b/TODO.md
index 9c7effa..eb38ea9 100644
--- a/TODO.md
+++ b/TODO.md
@@ -3,12 +3,12 @@
 - [ ] E2
 	- [ ] T3 Dziedzina funkcji
 	- [ ] T4 Własności funkcji
-- [ ] E3  - **03.02.23**
-	- [ ] T5 Obliczanie granic
-	- [ ] T6 Pochodna “skomplikowanej” funkcji
-- [ ] E4
-	- [ ] T7 Monotoniczność i ekstrema
-	- [ ] T8 Zastosowanie pochodnej inne niż T7 - styczna/normalna
+- [x] E3  - **03.02.23**
+	- [x] T5 Obliczanie granic
+	- [x] T6 Pochodna “skomplikowanej” funkcji
+- [x] E4
+	- [x] T7 Monotoniczność i ekstrema
+	- [x] T8 Zastosowanie pochodnej inne niż T7 - styczna/normalna
 
 ## Elektrotechnika
 - [x] Kolokwium 1 - 1.02.2023