$k^2+8k+12$
$csc^2x+2\:cot\:x$
$2\cot\left(y\right)\sin\left(y\right)+\cot\left(y\right)=0$
$2\cdot n-18$
$-10>w+10$
$\sin\left(4x\right)\cos\left(5x\right)$
$110-10.10111$
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