$\frac{2x+1}{x-5}\le\:3$
$9x^4+144$
$m^3-3m^2+3m-1$
$x^4+8x$
$\sec\left(t\right)^2+\csc\left(t\right)^2$
$\frac{csc\:t\:+1}{cot\:t}=\frac{cot\:t}{csc\:t-1}$
$4x^2-9x+2$
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