$\int\left(cos2x\right)^2dx$
$\lim_{x\:\to\:0}\frac{x}{\sqrt{3x^2+2x}}$
$\lim_{x\to\infty}\left(\frac{\sqrt{10x^4+20}}{22x^2+24}\right)$
$590\cdot\left(-8\right)$
$3x^2-10x-5$
$0t-9t+6u+4u^5$
$\sec\left(x\right)^2+\csc\left(x\right)^2=\sec\:\left(x\right)^2+\csc\:\left(x\right)$
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