$\left(3+5i\right)^4$

$\lim\:_{x\to\:\:3}\left(\frac{\tan\:\left(x-3\right)}{x-3}\right)$

$\lim_{x\to2}\left(\frac{x-2}{\sqrt{x+2}-2}\right)$

$\lim_{x\to0}\left(\frac{e^x-1-8x}{8x\left(e^x-1\right)}\right)$

$\frac{1}{3}x^2+\frac{4}{3}x+1$

$8\cdot703$

$\lim_{x\to0}\left(x^2ln\left(4x^2\right)\right)$