$\int\sqrt{2x+b}dx$
$\left(4a+2b^3\right)^3$
$\frac{\tan\left(x\right)-\cot\left(x\right)}{\tan\left(x\right)\cot\left(x\right)}$
$y=cot\:\frac{x}{x}$
$3a-17\le-11$
$\int_0^{x^2}\left(x^3-4x\right)dx$
$n^2+9n+20$
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