$5\sin\left(x\right)-\cos\left(2x\right)-2=0$
$\lim_{x\to0}\left(\frac{n^3-1}{n^4+3}\right)$
$x^2+x+15$
$\int e^x\left(x+2\right)^2dx$
$2\sin^2x+2=7\cos x$
$-2\left(-12\right)\left(-3\right)$
$4x+6>\left(x-2\right)$
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