$\lim_{x\to0}\left(\frac{e^n}{3^{n-1}}\right)$

$\int\left(2x-3\right)\left(x^2+3x+5\right)dx$

$\left(5x^2+y\right)\left(-5x^2+y\right)^2$

$\frac{dy}{dx}=\frac{\sec^2\left(x\right)}{1+2y}$

$3\:xy\:dy\:-\:xy^2\:dy\:+y\:dx+3dx=0$

$2\cdot\left(x+4\right)\cdot\left(x-2\right)\cdot\left(x-5\right)$

$00342rf4f$