$-\frac{8x}{3}-\frac{54x}{5}$
$asktkhy$
$11.97+-1h>9.97$
$4w^2+4w=120$
$1=\left(1+\cot^4\left(x\right)\:-\cot\:^4\left(x\right)\right)\:+\:y$
$\frac{\sin^2-\cos^2}{1-\sin^2}$
$\frac{dy}{dx}=\frac{y^2-2xy-x^2}{y^2+2xy-x^2}$
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