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██ ██████, ██ █████ █████ ██ ██████████, █'█████████████ █ ███ █████████ ██████████ ███ ███████████ ██ ██████████ █████ ████████ ████'█████ ██ █████. ██ ███████ █████████████, █ ████ ████ ████████ ████████ ██ █████ ███ ███████ ████████. ███ ██ █'█████ ██ ██████ ███ ██████ ████'█████████████ █ ██ █/██, ██████ █████ ██ ███████ ████████. ██ ████████ █████████ █████ ████████ ██ ██████ █████████ ██ █████ ███████ ████████ ███ ████ █████.

██████ ███ ███████████, ███ "█████████████" ██ ███████ █'█████████████ █████████████, ██████████████ ███ ██ ███████████ █ ███ ██ ██ ███████████ █ ███ ███████████ █████ ██████. ██ ███████, "█████████████", ███████, ███ ██████ ██████████ ███ ██ ███████████ ███ ████████ ███ ████████ ██ ██████████ ██ ███ ████████ ██ ████████ ███ █████. ██ ███████, █████ ███████████ ███ ████ █████████, ███ ████████ █'█████████████ ██ █████████ ██ █████ █'█████████████ ████████ █ █'█████████████ ████████.

█'█████████████ ██ ██ █████ █████████ █ ██ ██████████ █████ ███ ████████ ████████ ██ █████. ██ ████ ███ █████████ ███ ████████████ ████ ██████████ ████████ ███ ████████ █'█████████████ █████ ${\displaystyle \overline{\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}}$ ████ ██ ████████ ███ ██ ██████████ ██ ████████ ${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}={\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}-{\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}$ ██ █████ ██████ ${\displaystyle {\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}=\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}({\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}})}$ █ ████████ ${\displaystyle {\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}=\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}({\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}})}$ █████████ ████'███████, █ █'██████████ ██████ ██ █████ ${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}={\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}-{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}$ ██ ██████ ███ ████:

${\displaystyle \overline{\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}=\frac{{\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}-{\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}{{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}-{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}=\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}$

██ ████ ███████ ███ ██████████████ █'█████████████ ██ ███████ ████████████ ██ ████████ ██ ████ ███████ ██ █████, ██████ ██████████ ██ ████████ ██ ████████ ███ █████ █, ███ ██ ████████ █ ████████, ████████████ ██ ████████. ██ █████████ ██ ██████ ████ █'█████████████ ██████████:

${\displaystyle \mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}(\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>})=\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}(\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>})}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}$

██ ██████ ███ ██████ ███ █'██████████ ██ █████ ████████ █ ████ ███ ████████ ████████████ ███ █████████ █'█████████████ █████:

${\displaystyle \mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}=\underset{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\to \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{<span\; word-length="3"\; class="word\; redacted">███</span>}\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}=\underset{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\to \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{<span\; word-length="3"\; class="word\; redacted">███</span>}\frac{\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}(\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}+\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>})-\mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}(\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>})}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}$

█'█████████████ █████ ████████ ███ █'█████████████ ██████████ ██████ █████'██████ █ ████████ ███ █████ (${\displaystyle \mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}(\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>})=\text{<span word-length="8" class="word redacted">████████</span>}}$), █ ██ █████ ██ ███ ████ ██ ████ █████████████ ██████████.

███ ████ ███ █████ █████████ ██ ███ █████, ██ ███████ █████████████ ██ ██ █████ █ █████████ █████ ██ █████████ █████ ███████████ ██ ████ █████. ███ █████████ ███ ███████ ██ ████ ██ ███████ ████████ █████ ████████ ██ █████████ █ █████, ████████ ████████ ██ ██████, ████ ██ ███████ ███ ████ ██ ████ █████████ ████████. ██ ██████████ ███ ███████ █████████████ █████ █████████ ███ ████ █ ██ ██████ ████ █████, █ ██ ███████ █ ██████ ███████ (██████████████ ████ ███████████). ████ ███ ███████████ ██████████ ██████████ █ ████████, ███ ███████████ ██ █████████ ██ ██ █████ ████'█████████████ ██ ██ ███████ ███ ██ ████████ ██ ████████ ██ ██████ ███ ███████ ██████████.

██ ██ ████████ ███ ███████, ███ ${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}(\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>})}$ ██ █████████ ██ ██ ████ █████ █████ ████████ ████'███████ ██ ████. ██ ${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}$ █ ██ ███████████ ████'███████ ███ █████ ${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}$, ██ █████ █████ ████████ ██████████ ███ █████ ${\displaystyle \mathbf{<span\; word-length="1"\; class="word\; redacted">█</span>}=(\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>},\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>},\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>})}$ █ ██ ████████ █████ ███████████ ████████ ██ █████:

${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}=\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}=\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}\left(\sqrt{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}+\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}+\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}\right)=\sqrt{{\left(\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}\right)}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}+{\left(\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}\right)}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}+{\left(\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}\right)}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}}$