$\left(3m^3+2n^5\right)^3$

$\frac{7}{2}x^2+\frac{1}{3}x^2$

$\lim_{x\to0}\frac{\left(ln\:n\right)^2}{n}$

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

$\int\frac{x-1}{\left(x^2+2\right)\left(x-3\right)}dx$

$\sin\left(\frac{\pi}{6}+x\right)+\sin\left(\frac{\pi}{6}-x\right)=\cos\left(x\right)$

$-12\cdot14$