$\frac{\tan\left(m\right)-\cot\left(m\right)}{\sin\left(m\right)-\cos\left(m\right)}$

$\lim_{x\to2}\frac{\left(x^3+2x^2+8x\right)}{\left(x^3-8\right)}$

$\lim_{x\to0}\left(\frac{\ln\left(6x+1\right)}{\sin\left(2x\right)+x^3}\right)$

$\left(-2\right)\:x\:\left(+3\right)$

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

$12\cdot200$

$\left(-2\right)-\left(-7\right)-\left(+4\right)-\left(-3\right)+\left(+2\right)$