$\int_0^{\ln\left(2\right)}e^{x+y}dy$
$\frac{\sin\left(8\right)}{1+\cos\left(8\right)}=\frac{1-\cos\left(8\right)}{\sin\left(8\right)}$
$1235-+2300$
$w^2+14w-49$
$3x-1\le x+3$
$8x^2\:-\:4x\:-\:24$
$\:\:\:\left(\frac{b+e}{c}\right)-\left(d+a\right)$
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