vault backup: 2023-04-19 10:17:05

notes/.obsidian/plugins/obsidian-activity-history/data.json

@@ -13,7 +13,7 @@
     {
       "path": "/",
       "date": "2023-04-19",
-      "size": 1018248
+      "size": 1018524
     }
   ],
   "activityHistory": [
@@ -1182,7 +1182,7 @@
         },
         {
           "date": "2023-04-19",
-          "value": 2351
+          "value": 2627
         }
       ]
     }

notes/.obsidian/plugins/various-complements/data.json

@@ -258,16 +258,16 @@
     "\\frac{b^2+c^2-a^2}{2bc}": {
       "\\frac{b^2+c^2-a^2}{2bc}": {
         "currentFile": {
-          "count": 1,
-          "lastUpdated": 1681891095567
+          "count": 2,
+          "lastUpdated": 1681892107949
         }
       }
     },
     "\\frac{a^2+b^2-c^2}{2ab}": {
       "\\frac{a^2+b^2-c^2}{2ab}": {
         "currentFile": {
-          "count": 1,
-          "lastUpdated": 1681891398296
+          "count": 2,
+          "lastUpdated": 1681891896927
         }
       }
     }

notes/mat/Trigonometrie/Kosinová věta.md

@@ -72,4 +72,14 @@ $b^2=a^2+c^2-2ac\cos\beta$
 $b^2=7^2+12^2-2*7*12\cos124\degree$
 $b^2=49+144-168*(-0.5)$
 $b^2=277$
-$b=16.6cm$
+$b\dot=16.6cm$
+
+$\cos\gamma=\frac{a^2+b^2-c^2}{2ab}$
+$\cos\gamma=\frac{7^2+16.6^2-12^2}{2*7*16.6}$
+$\cos\gamma=\frac{180.56}{232.4}$
+$\gamma\dot=39\degree$
+
+$\cos\alpha=\frac{b^2+c^2-a^2}{2bc}$
+$\cos\alpha=\frac{16.6^2+12^2-7^2}{2*16.6*12}$
+$\cos\alpha=\frac{370.56}{398.4}$
+$\alpha\dot=21\degree$