$sen\left(37.8\right)\cdot75.4$

$\int_1^3\left(\left(6x-1\right)e^{3x^2-x}\right)dx$

$-2x+5>3-x$

$\left(12a-7b\right)^2$

$\lim_{x\to\infty}\left(\frac{3x^2}{sin\left(x\right)+x^2-x}\right)$

$\frac{dy}{dx}+\frac{y}{10}=5$

$18\:-\:12.\:\left(-\:2\right)\:+\:1.\:\left(-\:1\right)\:-\:3.\:\left(-2\right)$