#algebra 

$$ \LARGE \displaystyle \oint \textbf{F}d\textbf{S}=\int(\nabla\cdot\textbf{F})dV$$
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## Доказательство
![[Pasted image 20250122001556.png]]
![[Pasted image 20250122001611.png]]
![[Pasted image 20250122001618.png]]