$f\left(x\right)=\cos\left(x\right)\cdot\sec^2\left(x\right)$
$-14y+32xy$
$\frac{d}{dx}8x^3+4x^4$
$\csc^2a-1$
$27\left(-48\right)$
$\frac{36-9c^{2f+4}}{6-3c^{f+2}}$
$9x+2=110$
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