$3x+2y=12$

$\frac{d}{dx}\left(y^{raiz\left(x\right)}=x^{raiz\left(y\right)}\right)$

$\lim_{x\to\infty}\left(\frac{\left(1-x\right)e^{\frac{1}{x}}}{x}\right)$

$5x^2+19x-4=0$

$\csc^2x+\csc^2x-1$

$\left(3x+2y\right)\left(3x-y\right)$

$\tan^2\left(60\right)-\cos^2\left(45\right)+\sin^2\left(60\right)$