$100\frac{dy}{dx}+\frac{1}{100}y=12$

$\left(-2n^4\right)\left(2n^{-1}\right)$

$\lim_{x\to0}\left(\frac{4x\left(cos\left(2x\right)-1\right)}{sin\left(2x\right)-2x}\right)$

$3x^2,\:para\:x=2,\:y=-2$

$\lim_{x\to\pi}\left(\frac{1-\cos\left(5x\right)}{x^2}\right)$

$\int x\left(8x+cosx\right)dx$

$\frac{dy}{dx}+5x=3$