$\int_0^{\infty}\left(\frac{x}{x^2-1}-\frac{2}{3x+1}\right)dx$
$\int sc^5\left(x\right)\:dx$
$3\tan\left(60^{\circ}\cot30^{\circ}\sin45^{\circ}\csc45^{\circ}\right)$
$\frac{dy}{dx}=\frac{xy+3x}{x^2+1}$
$\frac{x^6-b^6}{x+b}$
$cos4x=2cos^2\left(2x\right)-1$
$-18+3\left(-10+3\cdot7\right)$
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