$\frac{1}{2}p-\frac{2}{3}q\:\frac{3}{4}p-\frac{1}{2}q$
$\left(\frac{2}{3}-m\right)\left(\frac{2}{3}+m\right)$
$\int tan9xsec^29xdx$
$cosa=\frac{1}{2}$
$x^3-4x^2-9+36$
$\cos2x+1=0$
$\int\sin\left(x\right)^3cos^5xdx$
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