$\left(-101\right)\left(33\right)$

$y=\left(e^{ax}\right)\left(\sin\left(ax\right)\right)\left(\cot\left(ax\right)\right)$

$5a^2-2bc-3d;\:a=2\:;\:\:bc=8\:;\:\:\:d=1$

$-55x^2y^2+76x^2y^2-13x^2y^2$

$\lim_{x\to\infty}\left(\frac{\left(e^t+t^2\right)}{e^t-t}\right)$

$3\cdot4+5$