$2sin^2x\:+3sinx\:=\:-1$
$\frac{x}{100}-\frac{y^2z^4}{81}$
$\lim_{x\to0}\left(\frac{x^2}{\ln\left(\sec\left(x\right)\right)}\right)$
$\left(-6\right)-\left(-0\right)$
$48\cdot3$
$-2+2+-1+8$
$\sin2x\cos x$
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