$19\cdot81$
$\frac{3x+2}{5}-\frac{5x-2}{4}+\frac{7}{10}$
$\int\frac{e}{e^{2x}+1}dx$
$-30x^4+14x^3+4$
$e^x\cdot dx+\left(1+e^x\right)\tan\left(y\right)\cdot dy=0$
$\int_0^{\frac{\pi}{2}}e^{cos2x}sin\:2x\:dx$
$-\:53\:-13-12-\:34-\:28$
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