vault backup: 2022-06-09 13:57:25

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

@@ -13,7 +13,7 @@
     {
       "path": "/",
       "date": "2022-06-09",
-      "size": 859944
+      "size": 859955
     }
   ],
   "activityHistory": [
@@ -710,7 +710,7 @@
         },
         {
           "date": "2022-06-09",
-          "value": 16439
+          "value": 16450
         }
       ]
     }

notes/mat/Příklady.md

@@ -199,13 +199,13 @@ $z=9$
 Rozdíl čísla x a jeho druhé odmocniny je -0.24.
 $x - \sqrt{x}=-0.24$ | $^2$
 $x^2-x+0=0.0576$
+$x^2-x+0.0576=0$
+$10000x^2-10000x+576=0$
 $D=b^2-4ac$
-$D=(-1)^2-4*1*0$
-$D=1$
-$\sqrt{D}=1$
-$x=\frac{-b\pm\sqrt{D}}{2a}$
-$x=\frac{1\pm1}2$
-$x_1=1$
-$x_2=0$
-
-$K=\emptyset$
+$D=10000^2-4*10000*576$
+$D=100000000-23040000$
+$D=76960000$
+$\sqrt{D}=8772.6848797845$
+$x=\frac{-b^2\pm\sqrt{D}}{2a}$
+$x=\frac{10000\pm8772.6848797845}{20000}$
+$x_1=