$\lim_{x\to0}\left(\left(\cos\left(x\right)\right)^{\frac{3}{x^2}}\right)$

$\left(3x\right)^3+64$

$2\left(x-3\right)=4x+14$

$\frac{dy}{dx}=\left(3\right)\left(y+1\right)$

$\tan^6\left(6x\right)\sec^4\left(6x\right)$

$\lim_{x\to\infty}x^2ln\:\left(1+\frac{3}{x^2}\right)$

$\int\frac{1}{x^2-2x+10}dx$