$2\sin\theta\cdot\cos\theta\cdot\cot\theta\:=1$

$2cos^2z+11cosz+14$

$\frac{dy}{dx}=\frac{-x+4y}{6x+y}$

$\sin\:\theta\:\tan\:^{\left(2\right)}\theta\:\left(2\sin\:\theta\:+3\right)+\tan\:^{\left(2\right)}\theta\:$

$\sqrt[3]{8a^2b}\cdot\sqrt[3]{64a^4b^7}$

$\lim_{x\to0}\left(\frac{2x^4-x^3}{x^2}\right)$

$\frac{dy}{dx}fy^5-4y^5$