$\lim_{x\to0}\left(\frac{\ln\left(1-x^2\right)}{\ln\left(\cos\left(x\right)\right)}\right)$

$n-1\:=\:8n\:-8\:$

$\frac{dy}{dx}=x^2\cdot\sqrt{y+2}$

$-x^2+1\ge0$

$\int_0^1x\left(x+4\right)^{10}dx$

$\frac{1}{2}\left(2x\right)^{-\frac{1}{2}}\left(2\right)$

$\int4^{5x}dx$