$\csc^2\left(x\right)\tan\left(x\right)=\csc\left(x\right)\sec\left(x\right)$
$4w\:-\:6\:-\:9w\:+\:3$
$8.3\cdot1.2$
$-7x-5x$
$x2-14x+48$
$x+4<3$
$x-15=32$
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