$2\:tan^2\left(x\right)=sec\:\left(x\right)\tan\left(x\right)$
$\int\left(2x\left(7x^2-1\right)^9\right)dx$
$4^{2x+1}=1024$
$x^3-4x^2-9+36$
$z^2-3z+29$
$\cot\left(a\right)=2$
$x+y'\:=\:y\:y\left(0\right)=3$
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