$\lim_{x\to0}\left(\frac{4x\cdot sen\left(x\right)}{tan\:\left(x^2\right)}\right)$

$\int\frac{1}{\left(\sqrt{x^2+576}\right)}dx$

$x^2-8x\ge0$

$\left(a^3-d^2\right)^2$

$x^{\frac{3}{2}}\cdot x^{\frac{1}{3}}$

$\left(x^2+2y\right)\left(x-6y\right)$

$\frac{1-\csc\:^{\left(2\right)}\theta\:}{\cos\:^{\left(2\right)}\cdot\csc\:^{\left(2\right)}\theta\:}$