---

excalidraw-plugin: parsed
tags: [excalidraw]

---
==⚠  Switch to EXCALIDRAW VIEW in the MORE OPTIONS menu of this document. ⚠==


# Text Elements
On sait que  ^3IYIx6Dn

Donc, on obtient : ^llO1mn5i

Soit : ^78A5lKDH


# Embedded files
50354b04bf083730064b2e4def5a853442648c7c: $$|a||c|$$
0f4d3c3770ed5ceb5bb71b74251b086f64282fdb: $$|b||c|$$
cb2a21a019dbf3e80d8e9d4eb88313fb0c65fc34: $$|c|\sqrt{a^2+b^2}$$
a91b24664e459c9d31f5889a9091f3993af06847: $$|b||d|$$
ad81253e5327818ae36fd3537f80178046dada20: $$|a||d|$$
1824f4c28130f331e7d9a212086525e61a1a2c47: $$|d|\sqrt{a^2+b^2}$$
83fa8ae407fb242ff63f03a6bde83997a5064840: $$\sqrt{a^2+b^2}\sqrt{c^2+d^2}$$
f46a26a3d69d522ee6a19914f2cf9d8012f51f28: $$\geq$$
967825701ae8129f09a908f2f076ec26a5e84c5c: $$\sqrt{a^2+b^2}\sqrt{c^2+d^2} \geq |a||c| + |b||d|$$
4ba9141b3f2399347a2963d3c6b743cc8b08cb8b: $$\|a,b\| \cdot \|a,c\| \geq \left\langle \begin{pmatrix}a\\b\end{pmatrix}, \begin{pmatrix}c\\d\end{pmatrix} \right\rangle$$

%%
# Drawing
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%%