From 1aefe984a3eab4f248a85c59f8b45a8c52bc4e14 Mon Sep 17 00:00:00 2001
From: Daniel Bulant <danbulant@gmail.com>
Date: Fri, 18 Feb 2022 07:47:20 +0100
Subject: [PATCH] vault backup: 2022-02-18 07:47:20

---
 .../plugins/obsidian-activity-history/data.json          | 4 ++--
 notes/mat/Absolutní hodnota.md                           | 9 +++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/notes/.obsidian/plugins/obsidian-activity-history/data.json b/notes/.obsidian/plugins/obsidian-activity-history/data.json
index 4024347..625ad66 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": "2022-02-18",
-      "size": 777554
+      "size": 777684
     }
   ],
   "activityHistory": [
@@ -50,7 +50,7 @@
         },
         {
           "date": "2022-02-18",
-          "value": 1131
+          "value": 1261
         }
       ]
     }
diff --git a/notes/mat/Absolutní hodnota.md b/notes/mat/Absolutní hodnota.md
index 8f29f16..a87e8f6 100644
--- a/notes/mat/Absolutní hodnota.md	
+++ b/notes/mat/Absolutní hodnota.md	
@@ -30,3 +30,12 @@ $|x-5|=|-6-5|=11$ ✔️
 $|x-5|=|16-5|=11$ ✔️
 
 ---
+
+$|x+3|=63$  nulový bod $x = -3$
+$x<3$
+$-(x+3)=63$
+$-x-3=63$
+$-x=66$
+$x=66$ ❌ $[66\not\in x<3]$
+
+$x \geq 3$