$arctan\left(tan\left(\frac{56}{45}\pi\right)\right)$
$\int\tan^22x\sec^42xdx$
$\left(y^3\right)^6$
$n^2-11n+24$
$x-19=5x+17$
$-3x+2;x=1$
$\frac{2x^{-2}y^{-2}}{4y^{-5}}$
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