$3\left(1+\cos x\right)=2\sin^2x$
$\frac{1+\csc\left(m\right)}{1+\sin\left(m\right)}$
$2x-3<7$
$\:9w^2\left(w^4+w^2z^2+z^4\right)-8\left(w^2+z^2\right)$
$9\left(1234\right)$
$3ab+3a+2ab+a$
$x+7\sqrt{x^2}-2x-65$
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