$5\left(v+5\right)$

$\int_0^{\infty}\frac{50e^{2t-1}}{1+e^{2t-1}}dt$

$\frac{dy}{dx}=5\cos\left(x\right)-y\cos\left(x\right)$

$\lim_{x\to\infty}\left(\frac{x^3+x^2+5x-3}{x^2+2x+5}\right)$

$\lim_{x\to0}\left(\frac{\left(x+u\right)^2-2\left(x+u\right)+1-\left(x^2-2x+1\right)}{u}\right)$

$7x<14$

$\lim_{n\to\infty}\:\frac{\left(ln\left(n\right)\right)^2}{11n}$