From d5807702776c414462758696748897a87ef199ac Mon Sep 17 00:00:00 2001
From: Daniel Bulant <danbulant@gmail.com>
Date: Tue, 7 Mar 2023 21:22:26 +0100
Subject: [PATCH] vault backup: 2023-03-07 21:22:26

---
 .../obsidian-activity-history/data.json       |  4 +-
 notes/.obsidian/workspace.json                | 40 +++++++++++++++----
 notes/mat/Funkce/Funkce.md                    |  1 +
 notes/mat/Funkce/Samostudium 15.md            | 17 ++++++++
 4 files changed, 53 insertions(+), 9 deletions(-)
 create mode 100644 notes/mat/Funkce/Samostudium 15.md

diff --git a/notes/.obsidian/plugins/obsidian-activity-history/data.json b/notes/.obsidian/plugins/obsidian-activity-history/data.json
index 3f58d5c..1ef1374 100644
--- a/notes/.obsidian/plugins/obsidian-activity-history/data.json
+++ b/notes/.obsidian/plugins/obsidian-activity-history/data.json
@@ -13,7 +13,7 @@
     {
       "path": "/",
       "date": "2023-03-07",
-      "size": 979291
+      "size": 979822
     }
   ],
   "activityHistory": [
@@ -1126,7 +1126,7 @@
         },
         {
           "date": "2023-03-07",
-          "value": 5907
+          "value": 6438
         }
       ]
     }
diff --git a/notes/.obsidian/workspace.json b/notes/.obsidian/workspace.json
index 324c873..3f75330 100644
--- a/notes/.obsidian/workspace.json
+++ b/notes/.obsidian/workspace.json
@@ -19,9 +19,33 @@
               }
             }
           },
+          {
+            "id": "e2420feff8894862",
+            "type": "leaf",
+            "state": {
+              "type": "markdown",
+              "state": {
+                "file": "mat/Funkce/Samostudium 15.md",
+                "mode": "source",
+                "source": false
+              }
+            }
+          },
           {
             "id": "84a4caaefb7062c3",
             "type": "leaf",
+            "state": {
+              "type": "markdown",
+              "state": {
+                "file": "mat/Funkce/Příklady.md",
+                "mode": "source",
+                "source": false
+              }
+            }
+          },
+          {
+            "id": "23b5b5bb8f644b0d",
+            "type": "leaf",
             "state": {
               "type": "markdown",
               "state": {
@@ -31,7 +55,8 @@
               }
             }
           }
-        ]
+        ],
+        "currentTab": 1
       }
     ],
     "direction": "vertical"
@@ -89,7 +114,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "mat/Funkce/Samostudium 17..md",
+                "file": "mat/Funkce/Samostudium 15.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -106,7 +131,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "mat/Funkce/Samostudium 17..md",
+                "file": "mat/Funkce/Samostudium 15.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -153,7 +178,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "mat/Funkce/Samostudium 17..md"
+                "file": "mat/Funkce/Samostudium 15.md"
               }
             }
           },
@@ -228,11 +253,12 @@
       "breadcrumbs:Breadcrumbs Visualisation": false
     }
   },
-  "active": "7df29fdf3742280a",
+  "active": "e2420feff8894862",
   "lastOpenFiles": [
-    "mat/Funkce/Goniometrické funkce.md",
-    "mat/Funkce/Samostudium 17..md",
     "mat/Funkce/Příklady.md",
+    "mat/Funkce/Goniometrické funkce.md",
+    "mat/Funkce/Samostudium 15.md",
+    "mat/Funkce/Samostudium 17..md",
     "mat/Funkce/Převody stupňů na radiány.md",
     "mat/mat.md",
     "cjl/cjl.md",
diff --git a/notes/mat/Funkce/Funkce.md b/notes/mat/Funkce/Funkce.md
index c3c4cf5..439cf0f 100644
--- a/notes/mat/Funkce/Funkce.md
+++ b/notes/mat/Funkce/Funkce.md
@@ -24,6 +24,7 @@ imagePrefix: 'data/'
 -  [[mat/Funkce/Příklady|Příklady]]
 -  [[mat/Funkce/Prostá funkce|Prostá funkce]]
 -  [[mat/Funkce/Rovnost funkcí|Rovnost funkcí]]
+-  [[mat/Funkce/Samostudium 15|Samostudium 15]]
 -  [[mat/Funkce/Samostudium 17.|Samostudium 17.]]
 -  [[mat/Funkce/Sinus|Sinus]]
 -  [[mat/Funkce/Tangens|Tangens]]
diff --git a/notes/mat/Funkce/Samostudium 15.md b/notes/mat/Funkce/Samostudium 15.md
new file mode 100644
index 0000000..5d64fd9
--- /dev/null
+++ b/notes/mat/Funkce/Samostudium 15.md	
@@ -0,0 +1,17 @@
+# Samostudium 15
+
+$\sin\frac56\pi=\sin\frac16\pi=\frac12$
+$\sin\frac{15}3\pi=\sin\pi=0$
+$\sin(-\frac74\pi)=\sin\frac14\pi$
+
+$\cos\frac34\pi=-\sin\frac14\pi=\frac{\sqrt2}2$
+$\cos\frac76\pi=-\sin\frac16\pi=\frac12$
+$\cos(-\frac43\pi)=\cos\frac23\pi=-\sin\frac13\pi=\frac{\sqrt3}2$
+
+$\sin210\degree=-\sin30\degree=-\frac12$
+$\sin330\degree=-\sin30\degree=-\frac12$
+$\sin720\degree=0$
+
+$\cos(-180\degree)=-1$
+$\cos120\degree=\sin30\degree=\frac12$
+$\cos240\degree=\sin30\degree=\frac12$