$\left(3xy-2yz+4zx\right)-\left(3zx+yz-2xy\right)$
$\frac{-g}{rk}\int_z^y\left(\frac{1}{bz+t}\right)dz$
$1+5+5+12+5+5$
$\tan\left(20\right)^{-1}\left|.364\right|$
$\left(4b-3c\right)^2$
$\frac{\left(1+\sec^2\left(x\right)\right)}{\tan^2\left(x\right)}=1$
$-x-4<-x$
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