$\int e^{\left(5x+1\right)}dx$

$2^{0}\cdotx^{3}\cdot\sen\left(y\right)+\sqrt{xy}$

$\lim_{x\to0}\left(\frac{7x-sin\left(x\right)}{x^2+\:sin\left(3x\right)}\right)$

$\lim_{x\to\infty}\left(\sqrt[2]{x^3+x^6}-x^6-x^4\right)$

$-8\left(\:x\:-\:9\right)\:=\:32$

$\left(x^3+10\right)\:\left(x^3+13\right)\:=\:\:\:\:$

$\frac{1+cot\left(x\right)}{1+tan\left(x\right)}=cot\left(x\right)$