$f\left(x\right)=ln\left(3-\sqrt{x^2-4x+4}\right)$

$\left(3z^2-1\right)^2$

$\int_{-3}^2\left(e^{2x}cos\left(3x\right)\right)dx$

$43+38c+35c-21c-32c$

$\lim_{x\to5}\left(\frac{2}{x-5}\right)$

$\frac{\sin^2x}{\sin2x}$

$\lim_{x\to\infty}\left(\cos\left(\frac{x^5-4}{x^6+7}\right)\right)$