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

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

${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\stackrel{\underset{}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}{=}\frac{[\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}{[\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}]+[\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}}$

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${\displaystyle \mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}=\frac{{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}[\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}][{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}{[\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}]+{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}[\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}][{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}=\frac{[{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}{\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}+[{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}=\frac{[{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}{{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}+[{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}^{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}]}}$

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${\displaystyle \mathrm{<span\; word-length="3"\; class="word\; redacted">███</span>}\frac{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}-\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}=\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}\mathrm{<span\; word-length="3"\; class="word\; redacted">███</span>}[\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}]-\mathrm{<span\; word-length="3"\; class="word\; redacted">███</span>}{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}_{\mathrm{<span\; word-length="1"\; class="word\; redacted">█</span>}}}$.

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