$-5.9\:+\:2.6h\:-\:9.3h\:+\:2$
$\left(6x-2\right)\left(4x+1\right)$
$\int\left(\frac{cosx}{\sqrt{1+sinx}}\right)dx$
$sen^{\left(2\right)}x\cdot cos^{\left(2\right)}x+cos^{\left(4\right)}x$
$3x\:+\:2y\:+\:4x\:+\:5y\:\:-2x\:-3y$
$\frac{\csc^2y-1}{\csc y\cos^2y}$
$1+\left(\cot^2+\tan^2\right)\cos^2$
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