$\int_1^{\sqrt{3}}\left(tan^{-1}\left(x\right)\right)dx$
$-2\left(y+2\right)+y$
$9x^4y^2+30x^3y+25x^2$
$4n^2+12-8n$
$3x^2-55x+150$
$15\left(y+1\right)=90$
$4979+1$
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