$\left(\sec^2\left(a\right)-1\right)\cdot\cot\left(a\right)$
$-x^3+9>0$
$-27^{\frac{1}{2}}$
$x+y=g$
$\int_4^64xdx$
$87.41-1.27$
$\left(a^4\right)^4$
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