$4\sin\left(x\right)=0$
$2\left(x-1\right)-x\ge3x+6$
$\frac{1}{\tan\cos}$
$\left(g+5\right)^2$
$2x^2-15x+29$
$\frac{1+\cos\left(a\right)}{\sin\left(a\right)}+\frac{\sin\left(a\right)}{1+\cos\left(a\right)}=\frac{2}{\sin\left(a\right)}$
$3a-4ab+2ac$
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