$\lim\:_{x\to\:\infty\:}\left(ln\left(ln\left(x\right)\right)\right)$

$\sin\left(a\right)\left(\csc\left(a\right)-\sec\left(a\right)\right)=1-\tan\left(a\right)$

$\left(\sqrt{y+1}-2\right)\left(\sqrt{y+1}-2\right)$

$-8x=-24$

$4x^2+16x$

$\frac{x^3y^7}{xy^3}$

$\int\frac{3x}{\sqrt{x^2-64}}dx$