$x^2+8x+3\ge12x+24$
$63y^2-132y+121$
$\frac{\cos\left(2\right)+1}{\sin\left(2\right)}$
$\int e^xsin\left(t-s\right)dx$
$\frac{-x^{4}+4x^{3}+12x^{2}-8}{x-6}$
$\frac{\frac{sin\left(a\right)^2+cos\left(a\right)^2}{cos\left(a\right)}}{sin\left(a\right)}=sec\left(a\right)csc\left(a\right)$
$sin3a-2cosa\:sin2a+sina=0$
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