$\frac{\sin\:^22x}{2}+\cos^2x=1$
$b+3=-3$
$\int cs^2\left(\frac{x}{2}\right)dx$
$b^2+20b+100$
$3x^2-2x+1<0$
$4+5y-2\left(5+2y\right)=6$
$\frac{3}{4}x^{-2}\:\cdot\frac{16}{6}xy^2$
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