$\int-\left(cot^2x+cotx+1\right)csc^2xdx$
$\frac{cos\left(x\right)}{sec\left(x\right)-tan\left(x\right)}=1+tan\left(x\right)cos\left(x\right)$
$y^2+y-1$
$-5467+3012$
$\lim_{x\to0}\left(\frac{\sin\left(x^2\right)}{e^x-x-1}\right)$
$2x+6x+14x$
$\frac{dy}{dx}\left(sin\left(9\:cos\:x\right)\right)$
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