$n\left(t\right)=ln\left(re^{-yt}\right)$
$\int\frac{\left(cot\left(x\right)+csc^3\left(x\right)\right)}{csc\left(x\right)}\:dx$
$\frac{3x+2}{2x+6}\ge1$
$8\cos\:\theta\:+\cos\:2\theta\:+5=0$
$\sin\left(x\right)\left(9\cos\left(x\right)-1\right)$
$81^4-126^2+49$
$3m^2+10=130$
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