mirror of
https://github.com/danbulant/notes
synced 2026-05-19 04:18:49 +00:00
vault backup: 2023-04-20 13:45:45
This commit is contained in:
parent
58d9729f2c
commit
10559c25da
10 changed files with 113 additions and 34 deletions
|
|
@ -12,8 +12,8 @@
|
|||
"checkpointList": [
|
||||
{
|
||||
"path": "/",
|
||||
"date": "2023-04-19",
|
||||
"size": 1019114
|
||||
"date": "2023-04-20",
|
||||
"size": 1020723
|
||||
}
|
||||
],
|
||||
"activityHistory": [
|
||||
|
|
@ -1182,7 +1182,11 @@
|
|||
},
|
||||
{
|
||||
"date": "2023-04-19",
|
||||
"value": 3217
|
||||
"value": 4389
|
||||
},
|
||||
{
|
||||
"date": "2023-04-20",
|
||||
"value": 449
|
||||
}
|
||||
]
|
||||
}
|
||||
|
|
|
|||
|
|
@ -278,6 +278,22 @@
|
|||
"lastUpdated": 1681895449259
|
||||
}
|
||||
}
|
||||
},
|
||||
"\\frac{c}{\\sin\\gamma}": {
|
||||
"\\frac{c}{\\sin\\gamma}": {
|
||||
"currentFile": {
|
||||
"count": 1,
|
||||
"lastUpdated": 1681895960588
|
||||
}
|
||||
}
|
||||
},
|
||||
"\\frac{a}{\\sin\\alpha}": {
|
||||
"\\frac{a}{\\sin\\alpha}": {
|
||||
"currentFile": {
|
||||
"count": 2,
|
||||
"lastUpdated": 1681896423503
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
27
notes/.obsidian/workspace.json
vendored
27
notes/.obsidian/workspace.json
vendored
|
|
@ -25,7 +25,7 @@
|
|||
"state": {
|
||||
"type": "markdown",
|
||||
"state": {
|
||||
"file": "mat/Trigonometrie/Sinová věta.md",
|
||||
"file": "mat/Funkce/Goniometrické funkce.md",
|
||||
"mode": "source",
|
||||
"source": false
|
||||
}
|
||||
|
|
@ -49,14 +49,14 @@
|
|||
"state": {
|
||||
"type": "markdown",
|
||||
"state": {
|
||||
"file": "mat/Funkce/čtvrtletka tahak.md",
|
||||
"file": "mat/Funkce/čtvrtletka tahák.md",
|
||||
"mode": "source",
|
||||
"source": false
|
||||
}
|
||||
}
|
||||
}
|
||||
],
|
||||
"currentTab": 1
|
||||
"currentTab": 3
|
||||
}
|
||||
],
|
||||
"direction": "vertical"
|
||||
|
|
@ -114,7 +114,7 @@
|
|||
"state": {
|
||||
"type": "backlink",
|
||||
"state": {
|
||||
"file": "mat/Trigonometrie/Sinová věta.md",
|
||||
"file": "mat/Funkce/čtvrtletka tahák.md",
|
||||
"collapseAll": false,
|
||||
"extraContext": false,
|
||||
"sortOrder": "alphabetical",
|
||||
|
|
@ -131,7 +131,7 @@
|
|||
"state": {
|
||||
"type": "outgoing-link",
|
||||
"state": {
|
||||
"file": "mat/Trigonometrie/Sinová věta.md",
|
||||
"file": "mat/Funkce/čtvrtletka tahák.md",
|
||||
"linksCollapsed": false,
|
||||
"unlinkedCollapsed": true
|
||||
}
|
||||
|
|
@ -178,7 +178,7 @@
|
|||
"state": {
|
||||
"type": "outline",
|
||||
"state": {
|
||||
"file": "mat/Trigonometrie/Sinová věta.md"
|
||||
"file": "mat/Funkce/čtvrtletka tahák.md"
|
||||
}
|
||||
}
|
||||
},
|
||||
|
|
@ -254,21 +254,23 @@
|
|||
"breadcrumbs:Breadcrumbs Visualisation": false
|
||||
}
|
||||
},
|
||||
"active": "17a42bea61d77b12",
|
||||
"active": "255de86181e3ea8e",
|
||||
"lastOpenFiles": [
|
||||
"mat/Funkce/Goniometrické funkce.md",
|
||||
"mat/Funkce/čtvrtletka tahák.md",
|
||||
"mat/Trigonometrie/Kosinová věta.md",
|
||||
"mat/Funkce/Sinus.md",
|
||||
"mat/Trigonometrie/Sinová věta.md",
|
||||
"data/Pasted image 20230419111526.png",
|
||||
"data/Pasted image 20230419111454.png",
|
||||
"cjl/literatura/slohy/Realismus/Realismus.md",
|
||||
"cjl/literatura/slohy/Realismus/Fidlovačka aneb žádný řev a žádná rvačka.md",
|
||||
"mat/Trigonometrie/Sinová věta.md",
|
||||
"mat/Funkce/čtvrtletka tahak.md",
|
||||
"mat/Funkce/Tangens.md",
|
||||
"mat/Trigonometrie/Trigonometrie.md",
|
||||
"mat/Funkce/Sinus.md",
|
||||
"mat/Funkce/Cotangens.md",
|
||||
"mat/Funkce/Cosinus.md",
|
||||
"mat/Funkce/Goniometrické vzorce.md",
|
||||
"mat/Funkce/Inverzní funkce.md",
|
||||
"mat/Funkce/Goniometrické funkce.md",
|
||||
"mat/Funkce/Funkce.md",
|
||||
"data/Pasted image 20230419091807.png",
|
||||
"cjl/literatura/slohy/Realismus/Božena Němcová.md",
|
||||
|
|
@ -285,14 +287,11 @@
|
|||
"cjl/literatura/slohy/Romantismus/Romantismus.md",
|
||||
"cjl/cjl.md",
|
||||
"mat/mat.md",
|
||||
"data/Pasted image 20230411141819.png",
|
||||
"data/Pasted image 20230411141429.png",
|
||||
"fyz/fyz.md",
|
||||
"data/Změny skupenství 2023-04-11 11.58.21.excalidraw.md",
|
||||
"fyz/Jevy mezi pevnýma tělesama a kapalinama.md",
|
||||
"fyz/Změny skupenství.md",
|
||||
"fyz/Pevne blbosti/Povrchová síla.md",
|
||||
"fyz/Pevne blbosti/Deformace.md",
|
||||
"cjl/literatura/slohy/Realismus",
|
||||
"cjl/literatura/slohy/Poetismus",
|
||||
"fyz/Pevne blbosti",
|
||||
|
|
|
|||
BIN
notes/data/Pasted image 20230419111454.png
Normal file
BIN
notes/data/Pasted image 20230419111454.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 15 KiB |
BIN
notes/data/Pasted image 20230419111526.png
Normal file
BIN
notes/data/Pasted image 20230419111526.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 14 KiB |
|
|
@ -9,7 +9,7 @@ imagePrefix: 'data/'
|
|||
%% Zoottelkeeper: Beginning of the autogenerated index file list %%
|
||||
- [[mat/Funkce/Cosinus|Cosinus]]
|
||||
- [[mat/Funkce/Cotangens|Cotangens]]
|
||||
- [[mat/Funkce/čtvrtletka tahak|čtvrtletka tahak]]
|
||||
- [[mat/Funkce/čtvrtletka tahák|čtvrtletka tahák]]
|
||||
- [[mat/Funkce/Exponenciální funkce|Exponenciální funkce]]
|
||||
- [[mat/Funkce/Funkce vs Rovnice|Funkce vs Rovnice]]
|
||||
- [[mat/Funkce/Funkční přepis|Funkční přepis]]
|
||||
|
|
|
|||
|
|
@ -48,6 +48,7 @@ $\cos\beta=\frac{x_B}1=x_B$
|
|||
|
||||
$\sin^2x+\cos^2x=1$
|
||||
[Goniometrické vzorce](Goniometrické%20vzorce.md)
|
||||
[čtvrtletka tahák](čtvrtletka%20tahák.md)
|
||||
|
||||
---
|
||||
|
||||
|
|
|
|||
|
|
@ -1,16 +0,0 @@
|
|||
# čtvrtletka tahak
|
||||
|
||||
$\sin\alpha=\frac{a}c$
|
||||
$\cos\alpha=\frac{b}c$
|
||||
$\tg\alpha=\frac{a}b$
|
||||
$\tg\alpha=\frac{\sin\alpha}{\cos\alpha}$
|
||||
$\cotg\alpha=\frac{b}a$
|
||||
|
||||
$\sin^2x+\cos^2x=1$
|
||||
|
||||
$\sin\alpha+\sin\beta=2\sin\frac{\alpha+\beta}2\cos\frac{\alpha-\beta}2$
|
||||
$\sin\alpha-\sin\beta=2\cos\frac{\alpha+\beta}2\sin\frac{\alpha-\beta}2$
|
||||
$\cos\alpha+\cos\beta=2\cos\frac{\alpha+\beta}2\cos\frac{\alpha-\beta}2$
|
||||
$\cos\alpha-\cos\beta=2\sin\frac{\alpha+\beta}2\sin\frac{\alpha-\beta}2$
|
||||
|
||||
$\cos x=\sin(x+\frac\pi2)$
|
||||
43
notes/mat/Funkce/čtvrtletka tahák.md
Normal file
43
notes/mat/Funkce/čtvrtletka tahák.md
Normal file
|
|
@ -0,0 +1,43 @@
|
|||
# čtvrtletka tahák
|
||||
|
||||
$\sin\alpha=\frac{a}c$
|
||||
$\cos\alpha=\frac{b}c$
|
||||
$\tg\alpha=\frac{a}b$
|
||||
$\tg\alpha=\frac{\sin\alpha}{\cos\alpha}$
|
||||
$\cotg\alpha=\frac{b}a$
|
||||
|
||||
$\sin^2x+\cos^2x=1$
|
||||
|
||||
$\sin\alpha+\sin\beta=2\sin\frac{\alpha+\beta}2\cos\frac{\alpha-\beta}2$
|
||||
$\sin\alpha-\sin\beta=2\cos\frac{\alpha+\beta}2\sin\frac{\alpha-\beta}2$
|
||||
$\cos\alpha+\cos\beta=2\cos\frac{\alpha+\beta}2\cos\frac{\alpha-\beta}2$
|
||||
$\cos\alpha-\cos\beta=-2\sin\frac{\alpha+\beta}2\sin\frac{\alpha-\beta}2$
|
||||
|
||||
$\cos x=\sin(x+\frac\pi2)$
|
||||
$\sin(2x)=2\sin(x)\cos(x)$
|
||||
$\cos(2x)=\cos^2(x)-\sin^2(x)$
|
||||
|
||||
$x_{1,2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$
|
||||
|
||||
---
|
||||
|
||||
$\tg(\frac{-7\pi}2)=\tg(-\frac\pi2)=\tg(\frac\pi2)=undefined$
|
||||
$\cotg(\frac{11\pi}2)=\cotg(\frac\pi2)=0$
|
||||
|
||||
$\cos(5x-\pi)=\cos(5x-\pi)\tg(x)$
|
||||
|
||||
$\cos(5x-\pi)=0$
|
||||
$s=5x-\pi$
|
||||
$s=90\degree+k180\degree=\frac\pi2+k\pi$
|
||||
$5x-\pi=\frac\pi2+k\pi$
|
||||
$5x=\frac\pi2+k\pi$
|
||||
$x=\frac\pi{10}+\frac{k\pi}5$
|
||||
$x=\frac{\pi+2k\pi}{10}$
|
||||
|
||||
$\tg(x)=1$
|
||||
$x=\frac\pi4+k\pi$
|
||||
|
||||
---
|
||||
|
||||
$(sin(2x)-cos(2x)+1)/(sin(2x)+cos(2x)+1)$
|
||||
|
||||
|
|
@ -1,5 +1,8 @@
|
|||
# Sinová věta
|
||||
|
||||
V každém $\triangle ABC$ platí:
|
||||
$\frac{a}{\sin\alpha}=\frac{b}{\sin\beta}=\frac{c}{\sin\gamma}$
|
||||
|
||||
## Příklad
|
||||
|
||||
Dopočtěte $\triangle$:
|
||||
|
|
@ -9,9 +12,38 @@ $c=20cm$
|
|||
$\alpha=45\degree$
|
||||
$\beta=105\degree$
|
||||
|
||||

|
||||
|
||||
$\gamma=180\degree-\alpha-\beta$
|
||||
$\gamma=180\degree-45\degree-105\degree$
|
||||
$\gamma=30\degree$
|
||||
|
||||
$\frac{c}{\sin\gamma}=\frac{a}{\sin\alpha}$
|
||||
$a=\sin\alpha\frac{c}{\sin\gamma}$
|
||||
$a=\sin45\degree\frac{20cm}{\sin30\degree}$
|
||||
$a=\frac{\sqrt2}2\frac{20}{\frac12}$
|
||||
$a=20\sqrt2cm$
|
||||
|
||||
$\frac{a}{\sin\alpha}=\frac{b}{\sin\beta}$
|
||||
$b=\frac{a}{\sin\alpha}\sin\beta$
|
||||
$b=\frac{20\sqrt2}{\sin45\degree}*\sin105\degree$
|
||||
$b=\frac{20\sqrt2}{\frac{\sqrt2}2}\sin105\degree=40\sin105\degree$
|
||||
$b=38.6cm$
|
||||
|
||||
|
||||
|
||||
b)
|
||||
$a=11.6dm$
|
||||
$c=9dm$
|
||||
$\alpha=65\degree30'$
|
||||
|
||||

|
||||
|
||||
$\frac{a}{\sin\alpha}=\frac{c}{\sin\gamma}$
|
||||
$\sin\gamma=\frac{c}{\frac{a}{\sin\alpha}}$
|
||||
|
||||
$\sin\gamma=\frac{9}{\frac{11.6}{\sin65\degree30'}}$
|
||||
$\gamma=44.9\degree$
|
||||
|
||||
$\beta=180\degree-65\deg30'-44.9\degree$
|
||||
$\beta=69.6\degree$
|
||||
|
|
|
|||
Loading…
Reference in a new issue