$\lim_{x\to0}\left(\frac{e^{sen\left(x\right)}-e^{-x}}{sen\left(x\right)-x}\right)$

$asktkhy$

$\int\left(\frac{\left(x^3+x\right)}{x}\right)dx$

$\lim_{x\to\infty}\left(1+\frac{11}{x}\right)^{\frac{x}{12}}$

$\cos\left(x\right)\left(2\sin\left(x\right)+1\right)$

$x+12x+36$

$\frac{2}{3}y^5-\frac{1}{3}y=\frac{1}{3}y$