$\sec\left(x\right)-\left(\tan\:\left(x\right)\cos\:\left(x\right)^2\right)$
$\left(x+1\right)^{-\frac{578}{365}}$
$\left(-22\right)^2$
$-3a+8a-b+4$
$\:5\:x^2y\:-\:10\:xy\:+\:20\:x^3y^2$
$\frac{tanx}{secx-1}-\frac{tanx}{secx+1}$
$\int e^{9x-2}dx$
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