$\left(\sin\left(a\right)+\cos\left(a\right)^2\right)-\tan\left(a\right)\cdot\cos^2\left(a\right)=1+\sin\left(a\right)\cdot\cos\left(a\right)$
$as=3t+2t^2$
$6\:\cos \theta-3=0$
$3x+4=x-8$
$m^2+3m-27$
$\frac{2x}{xy}$
$-3y+5-2y+1+3x$
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