$5+9\left(1\right)+2^2$
$-2x+2y=8$
$\int_{-3}^3y\frac{1}{3}dv$
$\frac{d^5}{dx^5}\left(9x^2+6x-10\right)$
$x^2+5\le0$
$csc^2x-1=0$
$9.9-7.88$
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