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████████████ █████ █████ ███ ████ █-██ █████ █████ ██████ ██████ ██ ███ ████████ ███████ ██████ █████ ███ █████ ██████ ██████ ███ ██████████████ ███████ ███████. ███ ██████ █████ ███ █████ ██████.

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

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

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

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

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

██ ███, ████ █ ███ ██████ █████ █████ █████ ███████ ████ █████ █████████████ ██████, ██████ ████ █████ ████ ████ ███ ███ ███████, █████ █████ ██████ ███████. ██████ ███████ ██████ █████ ██████ ████ ██████ ██████ ███████ █████████████ ██████ ███ ██████ ███ █████ █████. ██████ ██ ██████ ████████████ █████ ██ ████████████ █████ █████ (████ █████ ████ ██ ███ █████ ███████) ████ █████ ██:

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

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

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

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

████:

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

███ █████ █████ █-█ ███ ██████ ████ ████.

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