$\int\csc\left(\pi\cdot\right)\cot\left(\pi\cdot\right)dx$
$\sec\left(0.34\right)$
$2x^2+4x+4$
$1+\frac{\cot^2\left(b\right)}{1+\csc\left(b\right)}$
$n2-8+16$
$9.7n-12=-5.3n+18$
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