$\tan\left(2\pi\:\right)$

$\int5arcsen\left(9x\right)dx$

$\lim_{x\to0}\left(\frac{\sin\left(6x\right)^2}{x^2}\right)$

$\frac{dy}{dx}\left(x^2\left(x-y\right)^2-x^2+y^2\right)$

$\left(2x^3+y\right)^3$

$a^9\cdot a^7\cdot a^5\cdot a$

$\lim_{x\to\infty}\left(\frac{ln\left(x\right)}{ln\:10}\cdot\frac{ln\left(300x\right)}{ln\:10}\right)$