45 lines
1.2 KiB
Markdown
45 lines
1.2 KiB
Markdown
## Todo
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- [ ] spaced repetition
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- [ ] kung-fu
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## I did
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### Helped praly
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$$
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\begin{align} (S) &\iff \begin{cases}x &+y&+2z &= 5\\ x &- y &- z &= 5\\ x &&+ z &= 3\end{cases} \\[1em]
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&\iff \begin{cases}x&+y&+2z &= 5 \\
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&-y &-2z &= 2 && L_{2} \leftarrow L_{2}-L_{3}\\
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x & &+z &= 3\end{cases} \\[1em]
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&\iff \begin{cases}x &+y &+2z &= 5 \\
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&-y &-2z &= 2 \\
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& &z &= -4&& L_{3} \leftarrow - L_{1} - L_{2} + L_{3}\end{cases} \\[1ex]
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&\iff \begin{cases}x &+y&&=13 \\
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&y & &= 6 \\
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& & z&=-4\end{cases} \\[1ex]
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&\iff \begin{cases}x=7 \\
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y=6 \\
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z=-4\end{cases}
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\end{align}
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$$
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## Devoirs
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> [!smalltodo] Devoirs
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> ```dataview
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> TABLE difficulty as "", due as "date", title as "description", file.etags as "tags"
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> FROM #devoir
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> WHERE contains(due, date(this.file.name))
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> ```
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> > [!done]- Devoirs faits
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> > ```dataview
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> > TABLE difficulty as "", due as "date", title as "description"
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> > FROM #devoir-fait
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> > WHERE contains(due, date(this.file.name))
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> > ```
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> [!smallquery] anniversaires `=this.file.name`
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> ```dataview
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> TABLE title, anniv
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> FROM #personne
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> WHERE contains(this.file.name, anniv)
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> ```
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## I am gratefull to
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